range rating

Hi, I’m investigating lukewarm radiators and intermittent hot water in the house I’ve just moved into. We have a British Gas 330+ boiler. I note in the manual it says the boiler is factory preset to 18kW, but upon entering the diagnostics menu I see the “boiler output” is set to 10kW, and the...

I am the proud owner of an Ideal Icos HE15 that is 17 years old and somehow still functioning. I know that this boiler cannot modulate down very well, but I have got it working reasonably well and have spent a decent amount of time getting the pump speed sorted & balancing the heating system...

Range rating a boiler means adjusting its output to more closely match the heat requirements of a property, while on the other hand boiler modulation also reduces the output of the boiler to match the heat requirement of the property, as it gets close to its desired temperature. Range rating...