Just at the heating installation stage of a new build. House is about 3000sq ft and planning to run UFH and DHW off a condensing oil boiler. Plumber originally quoted to install a 118,000 BTU (26KW) boiler, now the time has come, he has bought a 88,000 BTU boiler. I'm concerned that the boiler is too small for the job. A couple of UK websites that have boiler-size calculators on them, tell me I should have around 27 - 32KW. He also plans to instal a 200L water tank which I also have concerns about (will be running 3 showers and a bath off it). Any plumbers out there that would be able to tell me if he is way off the mark or not? I dont want to be ripping out stuff at a later stage.
interesting email. The math is a bit off but otherwise the original plan for ifcjfc's 120 btu boiler seems to be correct. I rather be over then under.
Folks - thanks for all the information.
I think based on what I've heard here that I will ask him to upsize the boiler to 35KW. Can the boiler be too big for the job and therefore be inefficient?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?