2012年1月14日 · Natural Gas has been historically the most efficient fuel for both heating and DHW generation vs. fuel oil until recently. A very rough crossover is a $45/bbl Crude Oil Price. …

2007年12月18日 · Boilers - Home Heating Steam and Hot Water Systems - Help with DHW coil in oil-fired boiler - I have an old Smith boiler for a one-pipe steam system that heats DHW with a …

2022年5月9日 · To check your oil usage in the summer for hot water I think the easiest way is to see what your nozzle size is and see how long and how many times it runs in the course of an …

2018年1月12日 · TL;DR: What is more efficient/yields maximum energy savings?: Oil-fired boiler with tankless on warm start? Indirect on cold start? Indirect on warm…

2024年11月20日 · I've just replaced my Amtrol Boiler-Mate DHW set-up with a hybrid heat pump DHW set-up. I'm now unsure what to do with the temp settings on my oil-fired, 30-year-old …

but as I was talking about DHW, the fact is cast iron boilers cannot do DHW efficiently without copious amounts of insulation (like the vitola) or very good post purge controls such as several …

My plumber expressed some concern about the boiler not being used in the off-season since it is not used for DHW and might be subjected to condensate damage. He was suggesting that I …

2007年11月28日 · I think the easiest solution may be to put a DHW coil in the storage tank if possible. Then pipe the DHW with ball valves so you have a choice how to heat it. That way …

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2024年12月1日 · The actual efficiency of a system, can be determined by measuring the actual heat losses of its components. Attached is a chart showing the efficiency of an actual 80 gallon …