Hi All
firstly thank you for all being here and giving up your time to answer these queries
System: vented convetional Baxi 80PF boiler. Approx 10 years old. Radiators look to be about 15 years. Mixture of 15mm and microbore, though most are microbore. 20 radiators in house (!).
Problem1: hot water in ground floor and 1st floor bathrooms seem to trickle at times. Also shower sometimes goes from hot to cold in about 10 minutes, yet wasbasin next to shower has hot water.
Problem 2: 2 radiators downstairs only get lukewarm, 5 radiators on middle floor are warm and 1 not working (no heat). Top floor (loft) seems to have all working radiaors (15mm).
Problem 3: Recently the pump siezed so it was replaced. however, when it was replaced the system had to be backfilled. The problem with the radiators not getting hot was already there before the pump change. the engineer at the time said there is a blockage behind the hot water tank, which he couldnt get to as previous occupants had decided to build a shower on the side of it (1st engineer)!
Solution/Questions?
1. Are these all related problems?
2. I dont mind changing the Baxi boiler, but i do beleive in waste not want not. It is serviced every year (sadly by now retired engineer). but is it likely that the boiler cannot cope (80kbtu)? The 1st engineer certainly didnt mention this. I dont really want to go back to this 1st engineer as i wasnt around and he charged my wife £300+vat to change just the pump. Though in the end there was consolation when realised he had to backfill the system after changing the pump and he couldnt charge extra as he had given a fixed price in the first place - he was there about 2-3 hours - though initial of £300+vat was for pump and 1 hour work.
3. A 2nd engineer has said the system needs a powerflush. Although he diagonised this over the phone when i explained we had to backfill the system. I am happy to have the powerflush, i am assuming that the radiators are quite old and perhaps could do with it. Although when the system was drained (when fitting the new pump Grundos 15/60) i didnt notice any sludgy/black water.
4. Previous to the pump change, balancing was tried by, now retired, engineer and made a little difference but not much.
So i was thinking, should i go for the powerflush with the requirements that whatever happens the system must not be backfilled ie. the powerflush or any other action must sort the problem?
many thanks
PS I did read through the wiki questions, but i felt this one was about opinion.
firstly thank you for all being here and giving up your time to answer these queries
System: vented convetional Baxi 80PF boiler. Approx 10 years old. Radiators look to be about 15 years. Mixture of 15mm and microbore, though most are microbore. 20 radiators in house (!).
Problem1: hot water in ground floor and 1st floor bathrooms seem to trickle at times. Also shower sometimes goes from hot to cold in about 10 minutes, yet wasbasin next to shower has hot water.
Problem 2: 2 radiators downstairs only get lukewarm, 5 radiators on middle floor are warm and 1 not working (no heat). Top floor (loft) seems to have all working radiaors (15mm).
Problem 3: Recently the pump siezed so it was replaced. however, when it was replaced the system had to be backfilled. The problem with the radiators not getting hot was already there before the pump change. the engineer at the time said there is a blockage behind the hot water tank, which he couldnt get to as previous occupants had decided to build a shower on the side of it (1st engineer)!
Solution/Questions?
1. Are these all related problems?
2. I dont mind changing the Baxi boiler, but i do beleive in waste not want not. It is serviced every year (sadly by now retired engineer). but is it likely that the boiler cannot cope (80kbtu)? The 1st engineer certainly didnt mention this. I dont really want to go back to this 1st engineer as i wasnt around and he charged my wife £300+vat to change just the pump. Though in the end there was consolation when realised he had to backfill the system after changing the pump and he couldnt charge extra as he had given a fixed price in the first place - he was there about 2-3 hours - though initial of £300+vat was for pump and 1 hour work.
3. A 2nd engineer has said the system needs a powerflush. Although he diagonised this over the phone when i explained we had to backfill the system. I am happy to have the powerflush, i am assuming that the radiators are quite old and perhaps could do with it. Although when the system was drained (when fitting the new pump Grundos 15/60) i didnt notice any sludgy/black water.
4. Previous to the pump change, balancing was tried by, now retired, engineer and made a little difference but not much.
So i was thinking, should i go for the powerflush with the requirements that whatever happens the system must not be backfilled ie. the powerflush or any other action must sort the problem?
many thanks
PS I did read through the wiki questions, but i felt this one was about opinion.