Have small 2.5 bedroom terraced house, which seven days ago had a worcester
greenstarRi boiler fitted on the back wall in the kitchen to replace the 25
yr old potterton boiler that live in a tiny boiler shed outside.
After installation it took a few days for all the rads to come on tickerty
boo. Was told by the fitters when they left that the air in the system had
to work its way out.
Today its 4 degrees outside, and since i had to go to the shops i decided to
press the manual button to delay the heating coming on. when i came back
later I switched the timer back to auto and was conscious of waiting a long
time for the rads to heat up. The thermostat was set to 21 centigrade and
the temperature downstairs was about 17. The green light came on the boiler
indicating that it had fired up. The heat control on the front of the boiler
is set to three quarters on.
Now the heat on from the *old* boiler started warming up the rads downstairs
after about twenty minutes.
This afternoon i kept a log of what was going on, since nothing much seemed
to be happening by way of the rads heating up.
After an hour and a quarter the small radiator in the ground floor rear
room/kitchen was hot. The big radiator in the same room was barely warm.
Also barely warm were the radiator in the grd floor front room and also all
three bedrooms upstairs were barely warm. The towel rail in the bathroom
though was hot.
This suddenly all seems so much slower than a few days before. After one and
half hours both radiators in the two main bedrooms upstairs are still not
very hot, more like very warm. And finally after some 2 and a half hours
they are all hot except the first floor rear bedroom is kind of hot, but not
The Grundfos AlphaA2 pump is on the 'II' setting.
It all seemed to be working a lot better a couple of days ago, but this is
the first time i interupted the auto setting on the timer and turned it off
and on again manually.
Novis grateful for any suggestions.
- posted 9 years ago