Domestic Hot Water Instruction Articles

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Winterize & Maintain Your Tankless Water Heater

Tankless water heaters are fantastic units but they do need more care &... More

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Maintain your Tankless Water Heater, or ELSE!

If you have hard water and use a tankless water heater, sooner or later you will need to flush your unit. More

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Fix for a Noisy Hot Water System

Why increasing the size of the expansion tank will reduce the clicking noises... More

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Proper Water-Heater Temperature

Q: I recently learned that building codes in my state now require that newly... More

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Sizing Thermal Expansion Tanks

Why your thermal-expansion tank might be too small to adequately protect your gas... More

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Energy Payback From Instantaneous Water Heaters

Q. Do the energy savings provided by instantaneous gas water heaters justify their higher cost? More

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Q&A: Electric Radiant Heat for a Small Space

Q. I'm considering using electric radiant heating panels in the ceiling of a small superinsulated apartment, but I hear a lot of bias against electric heat. Can it be cost effective in this case? More

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Q&A: Using an Electric Water Heater for Radiant Heat

Q: In his November 1998 article, "Using Water Heaters for Radiant Heat," Bill Clinton shows how to heat a home with a gas water heater. Will an electric water heater work in this type of system? How about a tankless electric water heater? More

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Q&A: Plastic Pressure-Relief Piping

Q: Is it acceptable to use plastic piping for the pressure-relief discharge on a domestic water heater? The BOCA code in my area requires that the discharge piping be rated at or above the temperature of the system, but it’s not clear whether that refers to the temperature of the water in the tank or the temperature setting of the relief valve. More

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