Air Source Heat Pump Water Heaters
In this presentation, Gary Klein shares important information about air source heat pump water heaters (HPWH), with particular attention paid to where the warm air comes ...
Square Pipes on a Heating System
Not all pipes are round. Some pipes are square! Dan Holohan tells the story of an interesting hot-water heating system he saw in Germany.
Want to learn more? Read Dan Holohan’s book Classic Hydronics: How to Get the Most From Those Older Hot-Water Heating Systems.
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