F
fresher
Hello everyone,
I am Peter, new here, nice to meet you all experts!
My house has insulated brick cavity wall, old double glazed aluminium windows which sit on wooden frames, open vented heating system, boiler the Worchester Green star 15Ri, 8 radiators in house.
1. Recently I had 7 radiators changed in my house (3 bed) as old ones did not produce enough heat in my opinion.
All radiators fitted upstairs in bedrooms are doing great job, the problem is in my dining room/livingroom (one open space) of which dimensions are W3.9m- L7m-H2.3m, window area 7.6msq, it just takes very long to heat up. Normally I have to wait around one hour for temperature to raise by 1 degree, is that normal??
The radiators: one under window horizontal designer rad has 1537W and one on the other end of room has 1550W it is a convector radiator, both radiators are very hot but the horizontal radiator bottom is cooler than pipping hot top. My question is did I purchase to small radiators for the space?? All BTU calculators were recommending around 2800W for this space, ones I have totals up to just over 3100W. My boiler is set to around 85%.
2. I have an open vented system, I have asked my plumber to add Fernox F1 to new radiators and he poured two bottles in to expansion tank in the loft, would fernox reach all radiators from there? Should it be added in to the bathroom rads instead for example?
3. My pump next to hot water cylinder is GRUNDFOS Type 15-50 130, I have noticed that it is set to speed no 3 (the highest) I have heard that it shouldn't be on the highest speed as it can lead to radiators corrosion, is that true? this pump always been on setting 3 since I moved in 2 years ago, should it be set no number 2 to avoid radiators damage?
4. My plumber said that it is normal that the bottom of horizontal rad is cooler than top, is he correct? The top is pipping hot, the bottom just warm.
I would appreciate all help and advises.
Peter
I am Peter, new here, nice to meet you all experts!
My house has insulated brick cavity wall, old double glazed aluminium windows which sit on wooden frames, open vented heating system, boiler the Worchester Green star 15Ri, 8 radiators in house.
1. Recently I had 7 radiators changed in my house (3 bed) as old ones did not produce enough heat in my opinion.
All radiators fitted upstairs in bedrooms are doing great job, the problem is in my dining room/livingroom (one open space) of which dimensions are W3.9m- L7m-H2.3m, window area 7.6msq, it just takes very long to heat up. Normally I have to wait around one hour for temperature to raise by 1 degree, is that normal??
The radiators: one under window horizontal designer rad has 1537W and one on the other end of room has 1550W it is a convector radiator, both radiators are very hot but the horizontal radiator bottom is cooler than pipping hot top. My question is did I purchase to small radiators for the space?? All BTU calculators were recommending around 2800W for this space, ones I have totals up to just over 3100W. My boiler is set to around 85%.
2. I have an open vented system, I have asked my plumber to add Fernox F1 to new radiators and he poured two bottles in to expansion tank in the loft, would fernox reach all radiators from there? Should it be added in to the bathroom rads instead for example?
3. My pump next to hot water cylinder is GRUNDFOS Type 15-50 130, I have noticed that it is set to speed no 3 (the highest) I have heard that it shouldn't be on the highest speed as it can lead to radiators corrosion, is that true? this pump always been on setting 3 since I moved in 2 years ago, should it be set no number 2 to avoid radiators damage?
4. My plumber said that it is normal that the bottom of horizontal rad is cooler than top, is he correct? The top is pipping hot, the bottom just warm.
I would appreciate all help and advises.
Peter