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a Fluke 87 V is a great one that I use.

Absorption Refrigerators are a bit simpler than what you may be used to in the industrial chillers dealing with R717. These refrigerators utilize Hydrogen, Anhydrous Ammonia, Water, and Sodium...

It wasn't on a service call. But when my ex-wife's grandmother passed away, we moved into the house and I noticed a couple of the registers weren't blowing very well. I took the cover off and dug...

Additional insulation may not be required, but it is essential to have insulation in certain places. Two such places are around the boiler just above the burner and between the flue and the boiler at...