I have been quoted on a replacement for my old boiler with HW tank and the suggestions are a Worcester Bosch 37cdi from one installer and a Vaillent 832 from another.
I am a bit concerned about the change to a combi, mainly because of potential leaks and slow bath fill. I don't really have too many concerns about my current working system but the boiler is ancient (Gloworm Spacesaver 75).
My other concern is the choice between the two boilers. I hear WB are hard to install (not my problem) and maybe not quite as good as the Vaillent but it's smaller and has a DHW flow of15.1l/min compared to the Vaillents 12.9l/min. My house is a large 4 bed 30's semi with downstairs shower, kitchen and utility and upstairs bath.
Is the DHW flow rate difference something I should be concerned about?
I did a rough cold water flow check from the tap next to the boiler and got a 2l bottle to fill in about 8.5 secs giving approx. 14l/min which sounds low although I did not think my cold flow was particularly low when compared to other houses.
Thanks for any advice!
I am a bit concerned about the change to a combi, mainly because of potential leaks and slow bath fill. I don't really have too many concerns about my current working system but the boiler is ancient (Gloworm Spacesaver 75).
My other concern is the choice between the two boilers. I hear WB are hard to install (not my problem) and maybe not quite as good as the Vaillent but it's smaller and has a DHW flow of15.1l/min compared to the Vaillents 12.9l/min. My house is a large 4 bed 30's semi with downstairs shower, kitchen and utility and upstairs bath.
Is the DHW flow rate difference something I should be concerned about?
I did a rough cold water flow check from the tap next to the boiler and got a 2l bottle to fill in about 8.5 secs giving approx. 14l/min which sounds low although I did not think my cold flow was particularly low when compared to other houses.
Thanks for any advice!