Water heaters work by using either gas or electricity to heat a tank full of water that is then distributed to taps throughout the house. A thermostat on the outside of the water heater allows the user to adjust the temp... More »

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Tankless water heaters provide hot water on demand using a powerful heat exchanger that increases the temperature of the liquid as it passes through the tubes in the unit. They are available in electric, natural gas and ... More »

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A horizontal electric hot water heater works the same way as a vertical one. The direction refers to the mounting configuration. In some spaces, horizontal mounting provides additional room for storage and allows install... More »

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Most electric heaters are capable of turning electricity into heat efficiency, but they generally cost more than gas- and oil-powered devices to run. Power plants, most of which are fueled by coal and natural gas, lose e... More »

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Comfort Glow heaters use either direct heat from gas combustion or radiant infrared heating systems, depending on the model in question. Natural gas or propane are the fuels of choice for Comfort Glow heaters. More »

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Rheem water heaters are devices that heat water through gas, electric or solar power. The heaters are available as standard tanks or tankless boxes, which heat water on demand. More »

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Replacement parts for Rinnai gas water heaters can be purchased online from home improvement supply retailers such as Houseneeds, National Builder Supply and Build.com. Internet auction sites such as eBay also frequently... More »