D
Doctor Drivel
Look at the Ethos combi, they are highly cost effective.
http://www.ethosboilers.co.uk/products_54c.php
It actually gives 23 litres/min @ 35C temp rise, capable of supplying two bathrooms. It takes an OpenTherm room temp controller. The Honeywell Cronotherm will do. It modulates the burner via the controller.
Quite interested in this but you would more than likely have to upgrade the gas meter to a U16 and the gas supply from the meter to the boiler with 35MM pipe for the 54KW model,surely?
Tony.
You don't know much about gas and boilers do you? A U6 meter can pass 6 cu metres/hr or 212 cu foot/hr. A 54 kW boilers is 3412 * 54 = 182,248 BTU/hr. To get the approx cu foot per hour divide by 1000, which is 182. So well inside the 212. They could have taken it further, however they like to lave capacity at the meter for a cooker/hob.