That might be the problem.
Was your old boiler also set at 55C?
EDIT: are you heating the water at the same time?
Your house will heat faster if you turn the boiler up. But it might be a bit less efficient.
Ok I am testing now.
Is the boiler temperature displayed in numbers, or is there just a dial?
I have a Google Nest, but all seenm to work correctly as I have another temp thermostat next to it
How powerful was your old boiler?
Was a Potterton Profile need to check model
And finally! What is your new boiler model?
Worcester Bosch Greenstar 18Ri
I have a Google Nest, but all seenm to work correctly as I have another temp thermostat next to it
Assuming 45C return (with 55C flowtemp) & a required room temperature of 20C then those rads will only emit 51% output than a design 50deg rad which would require ~ 75C boiler temp to give a return of 65C and full rated output
Are you saying the boiler should be adjusted from 55C to 75C?Assuming 45C return (with 55C flowtemp) & a required room temperature of 20C then those rads will only emit 51% output than a design 50deg rad which would require ~ 75C boiler temp to give a return of 65C and full rated output
The heating never reached above 19C despite being set to say 24C. The old boiler used to heat the house very quickly and alot higher than 19cThat temperature could probably be increased, but the weather is not presently all that cold outside yet.
Is the boiler running near continuously when there is a demand for heat?
Possible. I need to go back to the heating engineer again...I'm trying not to overload you with questions. But I am wondering whether the problem could be down to the thermostat(s) cutting the boiler off. Modern thermostats can work in ways which are difficult to understand. What temperature is the thermostat set to?
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