Heating Bedrooms Issue across 2 floors in 3 storey house

[LeeGilchrist]

Hi All, I hope you can help. I am looking for advise to try to work out if my builder is fobbing me off again or giving good advise.

I live in a 3 storey 6 bedroom house. It has a Ideal Logic 24 boiler and we are having heating issues. (2 rooms on 3rd and 4 room on 2nd) with 1 x wireless thermostat currently on the 3rd floor. The house was completely rebuilt inside (back to 1st fix) due to insulation issues now fixed.

The system have been checked and balancing multiple times.

The radiators in the room on the top at the end of the system takes approx 30 minutes to get hot so the room never gets warm (currently 12 degrees) while the room other room on the same floor is approx 19.

If I move the wireless thermostat to the coldest room, our heating basically stays on the much longer and uses a ton of gas.

All rooms were tested again at 24 degrees (outside temp 14) and all rooms failed to get to temperature.

The builder has advised that they want to change the boiler and increase pressure to 2bar (currently 1.5) and put a programmable TRV in 1 room on the 3rd floor (coldest).

They wont show me the report from the 2nd lot of tests so I don't know if they are fobbing me off.

Can anyone advise if the boiler and pressure change will make much of a difference or will not improve anything as the global effect will be the same with rooms with the wireless stat also getting warmer quicker and turning off the heating.

What is the solution here for a controllable heating system in a house this size? and will the proposed works help?

A link to a report regarding the heating system prior to the boiler and rads being removed.

Dropbox - Heating_Report

 

[Rightjob1]

How many radiators and what size are they?single or double panel?

Increasing pressure to 2 bar will do nothing good for the system.

Any photos of the current boiler and pipework?

 

[townfanjon]

Briefly .... altering pressure = hes fobbing you off .
Stat has to go to a cooler part of the house .
Move it down stairs and regulate the room temps with TRV’s .

 

[SimonG]

Need to be looking at heat loss calcs and pipe sizing from boiler to rads.

 

[LeeGilchrist]

Attached are some photos of the boiler and Cylinder.
3rd floor
Bed2 (2 x small single, 1 x double large), Bed6 (1 x double large, 1 x single small)

2nd Floor
Bed1 (2 single small rad), , Bed 3 (1 x medium rad, Bed4 (1 x single small rad), Bed 5 (1 x single medium rad).

The coldest part of the house is Bed6. It is 5 degrees different the room next door on the same floor (Bed2) so there is probably a geographical\design factor why Bed6 and Bed1 (Bed1 is below Bed6) have a issue.

If I put the wireless stat in Bed6 our gas bills jumped by 200% so we took it out again. Bed6 is not used very much so don't really want to be paying a fortune is heating for a room not used to much but it still needs to be usable when we want to use it..

All the doors in the rooms are shut during the day due to pets etc.

 

[Murdoch]

Why are you putting the room stat in a bedroom?

If a system is working properly different rooms will be at different temperatures .....

Our boiler is upstairs, the room Stat is in the hall, and the valves on the opposite ends to the trvs are pretty much closed upstairs to get the circulation around all the downstairs radiators...

If you are hoping to get the whole house the same temperature, then you could find yourself chasing the end of a rainbow.

 

[LeeGilchrist]

Hi,. The stat was originally in Bed1 before it was wireless. This stat only controls the Bedroom temps. The stat on the ground floor control the heat on the ground and hallways to on all floors. If I move the stat into the hallways out of the rooms it is influenced by the rads controlled from a different stat. If I move it into the rooms the the room with the stat gets cold.

Our issue if not all rads get warm at the same time with the 3rd floor taking the longest. The stat is at heads height so turns off when the room gets slightly warm but the heat does not get to floor level for the TRV to be effective.

It just feel that this house needs a smart type stat system to control each room individually.

 

[Murdoch]

^^ so you have 2 zones....

I would be looking at the zone covering the bedrooms.....

 

[LeeGilchrist]

Hi All, Thanks for all the comments so far. In the early days of us moving in when we reported the cold the builder just chucked bigger rads to multiple rooms. Could they have pushed the system so the pump is not powerful enough. We have a Grundfos UPS025-60 130 which seems to have a flow rate of 1.0. The newer UPS2 pumps have a flow rate of 3.3. Could this be the solution?