I am considering fitting a new Vaillant system boiler 612 to replace Baxi back boiler. I live in a 2nd floor flat in 5 flat building. I was told by gas plumber that I may just have enough gas pressure to operate the 612 boiler but not models 615 & above.I have 6 double fin radiators & hot water is heated indirectly via a hot water cylinder. My questions are:-
1. Is 612 boiler adequate for my needs?
2. What is the minimum gas pressure required?
3. What is the minimum gas flow volume is required
for 612 to be operational.
Feedback from pros would be appreciated.
1. Is 612 boiler adequate for my needs?
2. What is the minimum gas pressure required?
3. What is the minimum gas flow volume is required
for 612 to be operational.
Feedback from pros would be appreciated.