Best Tankless Water Heater ReviewsWritten by Wilfred Weihe
A tankless water heater can only amplify the luxury of having a hot shower in the cold winter season. Taking a shower always feels good. Whether you’re weird out from your daily routine or starting your day with a fresh and soothing bath, a hot shower never runs out of excitement.The foremost advantage of using a tankless water heating system is that you will never run out of hot water as tankless heaters only heat the water flowing, it is economical while being as much as eco-friendly. It can be one of the smartest bathroom/luxury investments you had ever made, given that you bag the best option for you. With one of these water heating systems, you never have to worry over heat drain as these units don’t store water and only heat that much which is required.
A decent tankless water heater choice can save you the cost of several water heaters which you need to buy over the next decade or so for fulfilling shower luxuries. Longer lifetime, inherently efficient, compactness are some of the few advantages brought by a tankless water heater to your side. Owing to their ease of use and versatility, electric tankless water heaters are one of the most desirable bathroom accessories and best showers.
Tankless water heaters are typically available in two distinct variants, electric and gas. Each of the units have their own set of pros and cons. To draw a comparison, gas units employ either propane or natural gas to heat-up the water as opposed to electric tankless water heaters which relies on electricity to get the job done. Both have benefits over each other, like a high-end gas variant is capable of heating water at a much less cost than electricity while electric tankless water heater don’t require venting at all.
Along with the details of this products, this guide will help you to acknowledge the features, advantages, disadvantages, types and everything about an instantaneous water heater you’ll ever need to know to get your best fit product.
Best Tankless Water Heater Reviews
Stiebel Eltron Tempra 29 PlusIntroduction - Stiebel Eltron Tempra 29 Plus Electric Tankless Whole House Water Heater, 240 V, 28.8 kW is an electric tankless water heater by Stiebel Eltron. Its ASIN is B003QSGIAY and item model number is TEMPRA 29 PLUS.
The heater requires around 23.1x21.8.6 inches of space and weighs around 17.4 pounds. The part number of the top rated tankless water heater is Tempra 29 Plus. Tempra 29 Plus electric water heater combines the benefit of tankless heating with efficient digital temperature control which lets you adjust the heater settings as per the water flow rate.
The sleek design of the equipment facilitates it to be installed at any place. Its efficient water heating system provides you an electric bill reduction by guaranteed 15 to 20 percent. As no venting is required for the system, you don’t have to worry about the expelling of resultant gases.
The heater provide the hot water supply across the whole house without the need of coupling it with other water heating systems. It feeds on the standard 240 V power supply and hence there is no need to buy additional equipment for its input. The Tempra 29 Plus system is quite affordable.
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Review - A nice electric finish, efficient water heating mechanism and sleek design coupled with several other advantages of the Steibel Eltron Tempra 29 Plus makes it a perfect purchase.
Though along with the several advantages of the heating systems there are some petty-but-persistent issues which needs to be addressed before making up your mind for a purchase. The following best tankless water heater reviews enlists all the benefits and flaws that come bundled along this water heater:
Stiebel Eltron Tempra 29 Plus Pros
- Sleek design
- Complete solution for house-round use
- No venting required
- Saves you 15-20 percent of electricity bills
- Digital temperature control
- Convenient dial selector
- Automatically sense the flow rate and water temperature
- Calculates how much power is required for a specific operation
- Upgraded heavy-duty electronics
- Temperature range of 86°F – 125°F
- Satisfactory reviews
- Three-year limited warranty
Stiebel Eltron Tempra 29 Plus Cons
- Requires a bit effort in the wiring work
- Requires professional installation
Conclusion - Stiebel Eltron Tempra 29 Plus Electric Electric Tankless Whole House Water Heater, 240 V, 28.8 kW by Stiebel Eltron is a super-charged water heating system. The system lets you enjoy warm water with any temperature ranging from 86°F to 125°F. No need to worry about the limited amount of water that you can get with the best of storage water heating systems. As long as you have water running in your plumbing, you can get as much warm water as required.
The digital control system is super easy to use and the automatic detection of water temperature is awesome. However, the product is quite affordable. But this highest rated tankless water heater is covered with a 3-year limited warranty and has a stronger built. This highest rated tankless water heater is ideal for consumers looking for a complete home water heating solution without ever to worry about running out of hot water.
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Warning!Best check yo self where you'll be using all of this hot water. These best shower panels are amazing!
Ecosmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts with Patented Self Modulating TechnologyIntroduction - Ecosmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts with Patented Self Modulating Technology by EcoSmart is an electric tankless water heating system. ASIN for the top rated tankless water heater is B002635ODW.
Its part number and item model number is ECO 27. The original design of the equipment has origins of China. The product requires around 17x17x3.5 inches of space and roughly weighs about 17 pounds.
Three 40 Amp Double Pole are required to fulfil its breaker requirement. Compact design of the water heating system saves up to 12 cubic metre of storage space when compared with conventional water heating systems.
ECO 27 gives full control over the water heating by a digital temperature control which lets temperature to be raised with a rise of 1°F. This highest rated tankless water heater is ideal for large Roman-style Jacuzzi tubs and high-demand hot water requirements.
The equipment is built from stronger and strengthened materials to provide excellent build quality. The product comes with a lifetime warranty on electronics, exchanger and element employed in the top rated tankless water heater. The product is almost budget buy.
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Review - ECO 27 has enough water heating capacity to provide 3 gallons of hot water per minute. The heater is capable to simultaneously provide unlimited supply of hot water to two different running showers. Perfect for large Roman-style Jacuzzi tubs.
As these, there are several other advantages of using the big ECO 27, however before you make up your mind to purchase the equipment it’s better to have a quick gaze at best tankless water heater reviews and all pros and cons offered by this product:
Ecosmart Water Heater Pros
- Digital temperature control with 1°F raise control
- Capable of heating as much as 3 gallons in a single minute
- Saves 50 percent on electricity bills
- Based on patented self-modulating technology
- Saves space with its compact and wall-mountable design
- Requires only three 40 A double poles
- Complete home solution
- Can run 4 showers and a sink at the same time
- Requires standard 240 V electricity supply
- Watersense certified
- Lifetime limited warranty on certain parts
Ecosmart Water Heater Cons
- Requires professionals for installation
- Set up can require as much as 3 hours
- Thin gauge wire
Conclusion - Ecosmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts with Patented Self Modulating Technology by EcoSmart is no less than an excellent tankless water heating system. It has amazing water control which lets you control the temperature of water in 1°F increments. You don’t have to ever worry about hot water supply with the ECO 27 water heater.
Above all the features of the highest rated tankless water heaters, stands its Patented Self-Modulating Technology which lets it to automatically sense the water temperature and to calculate how much energy is required for warming up the water in a particular operation. Its efficient water heating system lets you cut down your electricity bills to about 50 percent. EcoSmart covers a limited lifetime warranty on selected system parts such as the electronics employed in the equipment. This product is almost budget buy.
Though a costlier price-tag, the top rated tankless water heater will save much more with its long-term operation. Ideal for customers looking for a complete home as well as smart tech electric tankless water heating system.
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Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural GasIntroduction - Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas by Takagi is a gas tankless water heater. ASIN for the product is this takagi tankless water heater review is B0057X27OC. Its item model number is T-KJr2-IN-NG and its part number is T-KJr2-IN NG. The product has a dimensional configuration of 6.7x13.8x20.3 inches and weighs around 19-and-a-half pounds.
The gas tankless water heating system is rated with 140,000 BTU of heating power. The equipment is capable of heating water with maximum flow rate of 6.6 GPM. A 4-inch category III Stainless Steel venting is required for the installation of the heating system.
With an energy factor of 0.81-0.83, the inlet and outlet of the system contain thermistors to continuously monitor temperature of water. The product comes with an Energy Star certification and is not costliest.
T-KJr2-IN-NG offers a 10-year warranty on heat exchanger and 5-year warranty on other parts of the heating system for residential installation and offers 5-year and 3-year respective warranties for commercial installations.
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Takagi tankless water heater reviews – T-KJr2-IN-NG is an efficient non-condensing gas tankless water heater which is specifically designed for installation in residential spaces. The heater has a good water heating system and an automatic water temperature detection mechanism which lets you continuously monitor the temperature of the water you get.
With Takagi installation you will never run out of hot water ever again. Bundled along with the advantages of the product comes some petty issues which needs to acknowledged before you make a purchase of the top rated tankless gas water heaters. For the purpose of best tankless water heater reviews, a list is prepared to let you know about all the benefits and issues offered by Takagi non-condensing gas heating water system as follows:
1. Balances incoming water with outgoing water flow
2. Energy star certification
3. 140,000 BTU heating power
4. 0.81-0.83 energy factor
5. Ideal for residential spaces
6. Constant water temperature monitoring with thermistors
7. Maximum flow rate of 6.6 GPM
8. Great customer reviews
9. Requires category III Stainless Steel venting
10. 10-year warranty on heat exchanger and 5-year warranty on other parts
1. Not fit for big residential spaces
2. Warranty only available if installed by a licensed technician
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Conclusion - 10-year warranty on heat exchanger and 5-year warranty on other parts by Takagi is a 140,000 BTU heating power rated non-condensing gas tankless water heating system. The system uses natural gas to warm up the water for you without causing any kind of pollution or inconvenience.
The manufacturer description states the product to be perfect for light residential and radiant heating applications. However, it can be used in small commercial places too. The warranty offered by Takagi covers the heat exchanger and some other parts of the heating system. The heater offers a maximum temperature set up of 131°F. The inlet and outlet of the heating system employs separate thermistors which continuously tracks the temperature of water and helps balancing the incoming water with the outgoing flow.
The warranty offered by the one of the top rated tankless gas water heaters is only applicable if a licensed technician does it, otherwise it is void. The product is not costliest. Perfect buy for customers looking for a high-end heating power tankless water heating system for installation in residential spaces.
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Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5 Gallons Per MinuteIntroduction - Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5 Gallons Per Minute by Rinnai is a gas tankless water heating system. The ASIN for the product is B0058DPG1C. Its part number and item model number is RL75iN. This large-sized heating system has 14x9.3x23 inches of dimensions and is a little heavier with 45 pounds of weight.
The product is certified by Energy Star and comes in Silver color. The large-sized product requires only a single wall or roof penetration for venting out the useless gas formations. The product is ideal for spaces with 2 to 3 bathrooms and many bathtubs.
The product comes with a residential controller which lets you set the water temperature anywhere between 98°F and 140°F. However, you can purchase a separate commercial controller for the system to control water temperature in the range of 98°F-160°F if you’re planning to install the equipment in commercial spaces.
Regardless of the context, the product has a high thermal efficiency of 82 percent and a maximum heating power of 180,000 BTUs. Its compact size makes it perfect for installation into any space inside any room. The product is capable of delivering hot water up to 7.5 GPM.
Rinnai offers separate warranties on the product, featuring 12-year warranty on the heat exchanger, 5-year warranty on specific parts and a 1-year for labor; all exclusive for residential installations. The products costs you quite a lot.
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Review – The RL75iN gas tankless water heating system comes with a lot of features which makes it one of the best tankless water heaters in its category. You can easily adjust the water temperature of the hot water anywhere between 98°F-140°F with its standard MC-91-1US digital controller with error code indicator which is super easy to use.
The large water heating system is capable to concurrently suffice hot water requirements for 2 to 3 bathrooms. Check out the following best tankless water heater reviews to know what benefits and issues comes wrapped with Takagi RL75iN:
1. Maximum heating power of 180,000 BTU
2. No fabrics
3. Requires single wall or roof penetration for venting
4. Thermal efficiency of 82 percent
5. Temperature control of 98°F-140°F and 98°F-160°F for residential and commercial installations respectively
6. Digital controller with error code indicator
7. Delivers hot water up to at 7.5 GPM flow rate
8. Saves energy
10. Requires a single wall or roof penetration for venting
11. Separate warranties on product, 12-year warranty on the heat exchanger and 5-year warranty on specific parts
1. Not a purchase for everyone
2. If you need to install the equipment for commercial use, then you require to purchase a separate commercial controller
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Conclusion - Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5 Gallons Per Minute by Rinnai is a nice choice of a gas tankless water heater for sufficing the hot water requirements in a 2-3 bathroom space. With its 82 percent thermal efficiency the products saves you energy as well as money over its long-term use.
The standard controller provided along with the unit lets you adjust the temperature of hot water coming out anywhere between 98°F and 140°F. Its compact size lets you install it at any location with a single wall or roof penetration for venting needs. With a maximum heating power of 180,000 BTUs the heating system is capable of delivering up to 7.5 GPM flow rate of hot water. The product is easy to use and can be installed at residential as well as commercial spaces, though it requires you to purchase an additional commercial temperature controller in case of the latter installation choice.
The product is covered by warranties offered on heat exchanger and selected parts. You can have the equipment for quite a lot of money. The product is ideal for customers looking to invest in a large and stronger build gas tankless water heating system for use in big spaces.
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Eccotemp FVI-12-NG High Capacity Gas Tankless Water HeaterIntroduction - Eccotemp FVI-12-NG High Capacity Gas Tankless Water Heater by Eccotemp is a compact gas tankless water heating system. Its ASIN is B00388M4B4. The item model number for the product is FVI-12-NG and its part number is 1210001. The white-colored equipment comes in a size of 4x15x24 inches and weighs about 20 pounds. It has an UL certification and requires 110 V voltage.
The product is designed to fulfil small and medium hot water requirements and is designed for indoor use. Eccotemp FVI12-NG comes with a horizontal steel vent kit, ready for quick installation. The product requires a standard household 120 volt electric outlet. All the components of the product is UL listed.
This small water heating product is capable to provide 74,500 BTUs of heating power and comes with true ½-inch NPT fittings. You can easily control the gas and water with its digital control with temperature display.
The product is very-much affordable with a price-tag range really low. Eccotemp Systems offers a 2-year warranty on the heater with a lifetime mechanical and finish warranty.
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Review – Eccotemp FVI-12-NG is a small and affordable gas tankless water heating system which is a perfect installation for small hot water requirements. The compact equipment can be easily installed anywhere around the place to get an unlimited supply of hot water.
You can easily control the temperature of the hot water with its super-easy to use digital control system. It can provide hot water at a flow rate of 0.93 GPM to 4.8 GPM. Along with many advantages, the product offers some minor issues which should be acknowledged before going for a purchase.
Following list contains all the major features and issues offered by Eccotemp FVI-12-NG gas water heater:
1. 77°F temperature rise at 2.3 GPM
2. Compact and sleek design
3. Low venting requirements
4. Includes a Stainless vent kit
5. Maximum heating power of 74,500 BTUs
6. 0.79 energy factor
7. Ideal for cottages, smaller homes and vacation cabins
8. Digital display and control
10. 2-year warranty on heater
1. Not fit for big space requirements
2. Can’t be used with a bilge pump
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Conclusion - Eccotemp FVI-12-NG High Capacity Gas Tankless Water Heater by Eccotemp Systems is an affordable gas tankless water heating system designed for fulfilling small-space hot water requirements. The product is compact and comes with a sleek design which lets the product to be installed anywhere.
Designed for indoor use, the heating system is capable of providing 74,500 BTUs of heating power. It comes with true ½-inch NPT fittings and a digital temperature display. The independent gas and water can be easily controlled with the easy-to-use controls. The product is rated with a 79 percent heating efficiency and is able to deliver a hot water flow rate of 0.93-4.8 GPM. Eccotemp Systems covers a 2-year warranty on the heater of the system and offers a lifetime mechanical and finish warranty.
The product is super affordable. However, the product isn’t good to use at commercial spaces or spaces with much-high hot water requirements. The product is ideal for consumers looking to purchase a compact and efficient gas tankless water heater for smaller hot water requirements.
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Best Tankless Water Heaters FeaturesIt never hurts to know one or two technical specs of a product you are soon going to invest in. First and foremost, it is desirable to understand the features that come bundled along an instantaneous water heater; whether gas, electrical, indoor or outdoor variant. The knowledge of these techs of the tankless water heating systems couple with your requirements, will help you decide whether you should purchase an electrical version or go for the gas variant.
Afterwards, you need to decide whether you would like the unit to be installed indoors or outdoors. Following list contains all the main technical specifications of a tankless water heater which you should heed carefully:
• Activation Flow Rate
Minimum flow rate a.k.a. activation flow rate of an instantaneous water heater is the least amount of water flow required by the heating system to ensure you get a hot water after turning on the knob of your shower. Some cheap units have activation flow rate as high as 1 GPM (gallon-per-minute) which can sore your luxurious bath. Therefore, it is essential to check for this spec before you decide to purchase a product. Simply, look for low activation flow rate while buying one of these equipment.
• Build Quality
The best way to invest money is to pay for skilled workmanship instead of saving a few bucks on the purchase of a cheap unit. The build quality of a product can be known by reading product reviews found on the Internet. Even if the product comes with a substantial warranty, a malfunctioning unit can cause you the inconvenience of not using it at your will coupled with the headache of reaching-out to the service for finding a solution. Therefore, it is necessary to check the build quality of a product before making your mind and go for the purchase.
• Condensing Water Heaters
Compared to a non-condensing tankless water heater which usually have an average energy factor of 0.82, a condensing variant can have an average energy factor of 0.95. Though condensing units are more costly, they are worth the cost. In addition to being efficient, condensing units have a better build quality. Condensing continuous flow water heaters uses the heat of the flue gas, a mixture of carbon dioxide, nitrogen oxides and water vapour produced as a result of the burning of natural gas or propane, as a secondary heat source and hence have a better average energy factor than non-condensing units.
• Energy Factor
Energy factor of a continuous flow water heater actually provides an approx. insight about the efficiency of the unit regarding the utilisation of heat source. For example, if a gas unit has an energy factor of 0.8 and gas consumption input of 10,000 BTU then the actual heating power of the unit will be 8,000 BTU. Such water heating system can provide an 80°F rise in temperature when water is running through it with a 2 GPM flow rate. In short, the more the energy factor the less the wastage of energy.
• Heating Power
Approximately 500 BTU per hour is enough to raise the temperature by 1°F of water flowing at 1 GPM. The fact is based upon that 1 BTU (British Thermal Unit) is equivalent to 1055 Joules. Suppose you have to raise your water temperature by 70°F at a 2 GPM flow rate, then you require 1000 BTUs to rise the temperature of water by 1°F. So, you’ll require 70,000 BTUs for the complete job.
Note:The BTU spec of a product isn’t its actual heating capacity. For that, you’ll need to apply the energy factor. However, heating power can you give you some rough idea about the heating efficiency of the unit.
• Maximum Flow Rate
Measured in GPM (gallons-per-minute), maximum flow rate gives you the knowledge of quantity of water allowed to pass through the water heater at an instant. A typical gas tankless water heater can have the maximum flow rate anywhere between 6 GPM and 10 GPM. You can estimate your required water flow based on the number of water fixtures that’ll be used simultaneously provided your best shower head or best shower faucet has a flow rate of no more than 2 GPM and make sure your shower drains will be able to handle it.
Best Tankless Water Heaters AdvantagesSo that we have now the features of a continuous flow water heater covered, let’s move on to know the pros offered by these units. Following list contains a number of advantages that are tagged to tankless water heaters:
• Compact Size
Tankless water heaters are compact units. Instead of installing them at somewhere distant from their location of use they can be installed at the location that they need to serve. As they don’t require water tanks, the save space and only requires some space for themselves only.
• Energy efficient
Tankless water heaters can be costlier than your average water heaters. However, they have a way too great energy efficiency factor than conventional water heaters. A typical storage water heater requires a water tank to store the heated water. The loss of energy results as the water being stored in the tank is not being used. Comparatively, continuous flow water heaters are used only when the water is required hence no loss of stored water heat. Also, these units draw less power than standard water heaters and hence, saves you a lot of energy.
• Reduced Risk of Damage
Water tanks are prone to several damages ranging from rupture to overflow. Therefore, no standing water tank, no risk of damage and you can easily use the on-demand water heater anytime at your service.
• Unlimited Hot Water Supply
Probably, the biggest advantage of tankless water heaters is their ability to provide an unlimited hot water supply. While you can run out of hot water stored in the tank of a conventional water heater, you don’t have to worry about running-out of water supply in a on-demand water heater as you can get as much hot water as required provided the water flow continues.
Best Tankless Water Heaters IssuesThough there are several convincing benefits of using a tankless water heater, there are some issues with these units which you need to acknowledge and adjust with before you get yourself one of these heating systems. These are mentioned as follows:
• Heat Source
Tankless water heaters either operate on electricity or gas. Therefore, less traditional systems such as solar water heating systems aren’t compatible with tankless water systems.
• High Start-up Cost
An average storage water heater costs about a fraction of the price of a tankless water heating system. In addition, tankless water heating systems might require additional costs of electricity and gas system installation. Though being such costly they can on-the-run prove to be better options than conventional water heating systems with storage.
• Minimum Temperature
A typical on-demand water heater have a minimum flow requirement. This is the minimum or say, desirable water flow which the system needs in order to start warming up the water required. The less the flow, the warmer the water. Therefore, it might require you some practice to get the desirable temperature water from the tankless water heating systems.
Best Tankless Water Heaters Water FlowWith tankless water heating systems you don’t have to worry about the hot water capacity as these units provide hot water until the water is running in your plumbing. Simply, the issue you need to bother about with such systems is the flow and not the water capacity. An on-demand water heater only runs out of hot water if the water flow increases over its limit to heat water after a maximum flow.
You can use such water heating system to fill an oversized tub but can’t expect a sufficient hot water supply for two bathrooms and a washing machine running. For that, you can only expect a lukewarm supply of water. Always remember to consider the maximum flow rate of such systems when using for heating water. Once the flow surpasses the maximum flow rate it can deliver, don’t expect hot water as it is not in the capacity of the water heating system to provide you with.
Tankless Water Heater TypesDepending on the context of usage and location, several types of tankless water heaters are available. Before making a purchase you should make sure about the requirement that you may want the heating system to fulfil. Though most of these systems come for indoor use, some of these are designed for outdoor installation hence eliminating venting requirements but only where the cold climate is not an issue.
Gas-fired tankless water heating systems require proper ventilation to expel out the waste gases formed during the process. Most of the gas heaters can have efficiencies as much as 80-85 percent. Electric variants, on the other hand, can help you cut down electricity bills over long-term use. Following are the most common types of tankless water heating systems:
Electric Tankless Water HeaterBest electric tankless water heaters doesn’t require ventilation as the heating of the water is done by electricity. Most of these equipment are energy-efficient and cut-down the electricity bills over a long-term use. Electric on-demand water heaters are ideal for indoor as well as outdoor use and ranges from single to multi-bathroom use.
Gas Tankless Water HeaterBest Gas tankless water heaters require either natural gas or propane to heat up the water. In the heating process, several unwanted gases like carbon dioxide are formed which needs to be expelled out of the environment. Therefore, gas variants of such heating systems require proper venting.
You can either vent on a wall or penetrate your roof for providing ventilation facility to the equipment. Gas heaters have a high initial cost but can be as much as 80-85 percent efficient. Therefore, gas tankless water heaters ideal for locations with no venting issues.
Portable Tankless Water HeaterPortable tankless water heaters can be used indoor as well as outdoors. These heaters come with a compact and sleek design which enables them to be installed anywhere with a reduced amount of installation labor. Most of these products come with separate warranties on the heat exchanger and other parts of the equipment.
If you’re looking for a tankless water heating system installable in a tight space, then a ‘sealed combustion’ unit with compact size will be the perfect choice for you.
Tankless Water Heater WarrantiesAlmost every tankless water heater comes with warranty. Most of the manufacturers like Takagi, Eccosmart Systems and Rinnai offers separate warranties on the product. The warranties on the heat exchanger or simply heater, can range from 5 to 12 years while for the other parts of the equipment you can get a warranty coverage of 2 to 6 years. Affordable and budget tankless systems also comes with warranties thought not separate on heater and parts, the warranty is offered on the complete unit.
Some products may have warranties limited to specific cases such as warranty applicable only when the installation of the product is completed by a licensed technician. Therefore, make sure to check for the warranty offered by the vendor before purchasing an on-demand water heater product.
Sizing a Tankless Water HeaterTankelss water heaters comes in a variety of sizes. Though they may range from small and mid-sized equipment to full-sized heating systems, they still consume less space when compared with conventional storage heating systems which requires tremendous amount of space for installing the storage tank. You can easily use tankless water heaters for indoor as well as for outdoor use (only in some cases though). Several of the leading tankless water heating manufacturers such as Rinnai and Eccotemp Systems offers multiple sizes of the same product.
Although, when sizing a tankless water heating system you don’t have to worry about the unlimited capacity of hot water it can provide, but the flow at which the system is capable to provide you hot water. Always be careful while selecting a tankless water heating system. You can base your decision on its heating power, minimum flow rate and energy factor to accurately estimate your hot water requirements fulfilling as you don’t want to stuck with an equipment which is able to provide you only lukewarm water into multiple fixtures.
A typical tankless water heating system is capable to provide hot water supply at 1.2 GPM with the expense of 31,000 BTUs which is eventually raised to 190,000 BTUs if you want the same hot water delivered with a 5.7 GPM flow rate. If you’re concerned about the efficiency of the heating system then you should keep a close look onto the heating efficiencies of the product which can vary between 78-87 percent.
Therefore, in any case it is advisable to check for the specifications of the product before making a mind for purchase of the equipment. It’s always better to think and check before the purchase than to worry afterwards.
To sum up, a tankless water heater whether an electrical or gas-driven is ideal if you’re fed-up with worrying about the limited supply of hot water which you’re getting from your current water heating system. With a tankless water heating system employed at your side, you need not to worry about the quantity of hot water that you can get with these. Also, a number of design and variants of the product is available in the market so that you can choose the one you may find fancy.
However, you should always see the specs of the product before investing your precious money into a product. Always remember to check for the heating capacity, build of the product, minimum flow rate, and the heating efficiency of the equipment. Be sure to go through some reviews about the product you’re about to purchase as these reviews can provide you the necessary insights about the quality and assurance of the product. As several of the good on-demand water heaters come with a warranty coverage, be sure to get the best product out of the market.