Rads slow to heat up

celticbhoy32

Registered User
Messages
30
Hi all got a new grant boiler couple of years ago. Thing is when i turn it on, it takes over an hour for the rads to heat up. I have it timed to come on in the mornings at half 6 but its close to 8 before the rads are hot. Any ideas what the prob could be?
 
Is this all rads or just one/ a few? Recent problem or was it always the case? When they do finally heat up, is there consistent heat from the bottom to the top of the rad?

Was a power-flush carried out when you had the boiler replaced(assuming it was a replacement and not a brand new install)? Have you tried bleeding them?
 
make sure the hot water isn't on at the same time.

If the water is cold this will soak up a lot of heat at the start.
 
Back
Top