Ok, gas is now up another 35% and I have decided that my old (20+) Baxi boiler and radiators are having to go and a newer much more efficient system is to be installed. Dilemma, what type of boiler should I go for? I have heard many horror stories about combi boilers failing and requiring new control panels and pressure valves, what makes should I stay well away from and what should I look for with regards functions on the boiler itself, if that makes sense. I wish to have a programmeable room stat controlling the heating side as a minimum and know that since around 2005 any boiler shall be a condensing version. I have done the calculations and estimate that I need a wall mounted boiler vented through the wall of around 80000BTU's or around 20KW. This will feed ten radiators, (3 upstairs and 7 downstairs)probably stelrad elite or compact models (but open minded) via 10mm microbore piping from manifolds being fed via 22mm copper pipe direct from the boiler. Do the new boilers come complete with circulation pumps or like my old boiler did require an external pump.
I priced this lot up the other day using plumbcenters prices and nearly had a heart attack, £5K for boiler and radiators alone.
I have read that combi boilers struggle a bit due to low flow rates to fill a deep bath is this true? what flow rate should I be looking for?
How can some of the local heating companies offer systems at around half this price installed. Are they using inferior materials, poor quality boilers etc, or are they getting better discounts than the man in the street from retailers.
I hope this makes sense,
Any help / advice would be appreciated. :?: :lol: