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Best Tankless Water Heater Reviews, Ratings, Buying Guide

Best Tankless Water Heater Reviews, Ratings, Buying Guide

The traditional standard water heaters include a tank for storing water while tankless systems don’t have any such water tanks. It’s very crucial to understand the basic functioning of the standard tank heaters before you can delve deeper to explore the working of tankless water heaters. Actually, the traditional water heaters heat and maintain constant temperature of the water stored in a sufficiently large tank to ensure constant supply of hot water.

These water heaters consume lots of energy for maintaining a constant temperature using a thermostat even when the water is not used. This results in wastage of energy known as standby heat loss. On the other hand, the tankless electric and gas water heaters don’t maintain heated water and operate by instantly heating the passing water when the users open the tap, completely eliminating standby heat loss. They provide water heating when the users actually need hot water and thus, known as “on demand” water heaters. Obviously, the tankless water systems use very powerful heat exchanger to instantly heat the passing water to raise its temperature and let you enjoy piping-hot shower whenever you need. As the name literally indicates, the heat exchanger is the most important device of tankless home water heaters to efficiently transfer heat from one medium to another, of course, water in this case. The flow of incoming water activates the heat exchanger device. So, when you open or turn on the hot water tap, the heat exchanger starts heating the circulating water through it, and you get instantly heated water as per your preset temperature. You just need your soap and shampoo to enjoy rinse, wash or shower with hot water. The tankless water heating systems provide hot water whenever you need without wasting energy for maintaining temperatures of stored water as required in the traditional water heaters.

Electric Tankless Water Heater Reviews & Buying Guide

Depending on the level of use, there are two varieties of tankless heating system – point-of-use and whole-house water heaters. The whole-house heaters support many outlets in the house to provide hot water. The whole-house heaters are larger, more expensive and carry higher operating costs. When you open your tap or faucet, it takes some time to get the hot water. This waiting period is defined by lag time, which can be significantly high reaching up to several minutes in big houses. So, when deciding to install whole-house tankless water heaters, you must consider the saving potential of electricity bills as well as the additional water consumption charges resulting from time lag wastage. The point-of-use systems only provide one or two outlets; for example, you can install point-of-use systems for your kitchen sink. The point-of-use heaters are quite small, and they can fit in the closet or under the cabinet. They are installed near the desired outlet and therefore, don’t lead to any considerable water loss from lag time. The electric as well as propane or natural gas based tankless water heaters are available in the market, and you can choose according to your preferences. Generally, electric power source is used for point-of-use models while the whole-house systems are propane or natural gas based. The right heating system for your home depends upon many factors.

The Installation Of Tankless Water Heater Provides The Following Advantages:

The tankless propane or electric water heaters are more efficient. As compared to the traditional tank based heaters, the tankless heaters provide 24-34 percent more efficient heating for homes using 41 gallons per day. They provide 8-14 percent better efficiency even for homes with using more than 85 gallons per day.

The tankless gas and electric water heaters are more compact than the tank based heaters.

The gas based models of tankless heaters provide very cost effective heating solution because the efficiency ratios of these units are significantly higher. The cost of heating solution per month turns out to be very low.

The tankless water heating solutions support more people as compared to the tank based heaters. The tankless heaters can provide the same hot water to the fourth person while storage tanks may run out of hot water. The tankless water heating solutions have the following limitations:

Sufficient water flow is required to activate the heating device.

Even though it takes only five seconds to heat the water in the tankless heating system, it can take several minutes to get hot water in the whole-house heating solutions. There is always some lag time involved with thankless heating.

Tankless systems are expensive as compared to the tank based heating solutions. While it takes approximately $800 – $1,000 to install gas based storage tank units, the cost for tankless whole-house system turns out to be $1,500 to $3,000. With low gas prices, the payback periods to actually realize the saving potential are fairly long.

The whole-house systems are costly and point-of-use heating systems fail to support the simultaneous hot-water needs at many outlets. 

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Is there any safety issue involved with tankless gas/electric water heaters? The tankless heaters don’t produce excessive carbon monoxide as the perfect mixture of air and gas is used for heating in gas based models. The sensors automatically stop the heating system if it gets overheated. There is no chance to shoot up or explosions. Is there any environmental issue involved with tankless water heaters?

The tankless propane and electic water heaters are more eco-friendly as compared to traditional tank heaters. They are more efficient energy savers as water is heated only when required. If I go for tankless heating solution, will it really serve as an instant source of hot water? The heat exchangers used in the tankless electric/gas/propane water heaters are efficient enough to instantly heat the water circulating through it, but the cold water between the tap and fixture has to be emptied before you can get hot water. This lag time takes a few seconds. You should also understand that flow of the water activates the heat exchanger and therefore, sufficient flow of water is required to turn it on. Your tankless heater may not operate if you slightly open the hot water taps. You may have to ensure at least 0.6 gallons per minute flow of water in order to activate the tankless heating system. Can I replace my old tank water heater by installing tankless water heater on the same location?

The tankless electric/gas water heaters are very compact and can be easily installed. The Direct Vent (DV) unit heaters are the best choice for indoor installations. You can install tankless water heating system at any locations like attics, basements, garage, utility rooms and preferably outside walls. The tankless home water heaters are generally mounted on the walls saving the floor space. The digital temperature control unit can be installed near the unit, but you can also prefer other rooms. Do tankless electric or propane water heaters provide durable heating solution? Are they more durable than tank heaters? Of course, tankless propane or electric water heaters provide very durable heating solutions. The units contain copper heat exchangers and stainless steel burners, which are very durable. Many factors such as the environment, usage, water quality and maintenance affect the durability of your tankless water heater, but the traditional tank heaters are subject to excessive corrosion as they constantly maintain hot water.

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