stove not working

therealist85

Had 6kw back boiler stove fitted about month and a half ago. From after about a week nothing but trouble. Not heating rads Luke warm at best. Bled all rads took air from them all. Since I got it I was burning stove nuggets wood. I sIarted burning coal recently and noticed more heat in the rads but still not hOt. Down stairs rads never heat up. Stove is in sitting room pump is in hotpress. There is no more than 12 metres from stove to hotpress and now the pump doesn't seem to hav power which is not pumping water. Plus I have oil in the house when I turn that on the pump starts also. Any help will be grateful I'm at a wits end at this stage.

sky6

Firstly the hot press is too far from the stove. at 12 Metres. Is it a Bungalow.? What size is the pipework. How many Rads ?.
The Stove is probably trying to heat the oil boiler also which may be too much for it. The Flow of the Stove needs to rise continually to the Cylinder. You should really get the Plumber who installed back to sort it or better to get one who knows what he's doing.

therealist85

sky6 wrote: »

Firstly the hot press is too far from the stove. at 12 Metres. Is it a Bungalow.? What size is the pipework. How many Rads ?.
The Stove is probably trying to heat the oil boiler also which may be too much for it. The Flow of the Stove needs to rise continually to the Cylinder. You should really get the Plumber who installed back to sort it or better to get one who knows what he's doing.

Its a 2 storey with 7 rads 3 downstairs and 4 upstairs its inch pipe. From stove straight up to room above sitting rooom across floor then across landen into hotpress were tank. Do it need non return valve as I don't see one attached anywhere

braddun

who fitted it

was it a cowboy

corkgsxr

6kw stove with backboiler?

Or the split to backboiler is 6kw. Eg 12kw stove with 6 to room and 6 to backboiler



Either way that's tiny output

therealist85

corkgsxr wrote: »

6kw stove with backboiler?

Or the split to backboiler is 6kw. Eg 12kw stove with 6 to room and 6 to backboiler



Either way that's tiny output

Well only need 2-3 kw for room as its small I was assured 6kw was perfect few neighbours have the same one and rads are boiling

therealist85

braddun wrote: »

who fitted it

was it a cowboy

Not a cowboy even though it sounds like it. Was the misses uncle who has fitted them before but having nothing but trouble now

sky6

The Pipe size is correct. Where in the system is the expansion pipe and Safety Valve fitted . What route does the return to the Stove take from the Cylinder. The flow from the Stove is supposed to rise continually to the Cylinder, Not rise and fall.
It seems like you have poor gravity circulation caused initially by the distance to the Hot press but also by the Bends adding further resistance. Are you experiencing any banging in the pipes when a good fire is lit.

therealist85

sky6 wrote: »

The Pipe size is correct. Where in the system is the expansion pipe and Safety Valve fitted . What route does the return to the Stove take from the Cylinder. The flow from the Stove is supposed to rise continually to the Cylinder, Not rise and fall.
It seems like you have poor gravity circulation caused initially by the distance to the Hot press but also by the Bends adding further resistance. Are you experiencing any banging in the pipes when a good fire is lit.

Safety valve is beside stove . The route from stove to cylinder is the shortest as can be. The return is as I can tell from cylinder to attic and back down to stove. There is no major banging of pipes. little noise which doesn't last long. is it possible the pump is on the wrong place and should be beside the stove and not in the hot press. Plus the pump kicks in when I have the oil on. If I move the stat temp above 35° while stove on pump stops .

jimf

I think the last comment says a lot really how far from the stove is your stat

35 dg circulating around your system is going to be barely noticeable

therealist85

jimf wrote: »

I think the last comment says a lot really how far from the stove is your stat

35 dg circulating around your system is going to be barely noticeable

The stat is on the pipe tats beside the tank in hot press

corkgsxr

A 6 kw stove will struggle to maintain them rads. You'd be lucky to feel much heat

Dtp1979

therealist85 wrote: »

The stat is on the pipe tats beside the tank in hot press

If the oil heating activates the solid fuel pump then you've problems. I'd say you e no non return on the oil boiler side and your stove is sending all the heat to it. Light the stove only. After an hour go out to your oil boiler. If the pipes are warm then that's your problem.

sky6

Dtp1979 wrote: »

If the oil heating activates the solid fuel pump then you've problems. I'd say you e no non return on the oil boiler side and your stove is sending all the heat to it. Light the stove only. After an hour go out to your oil boiler. If the pipes are warm then that's your problem.

That's only for starters. There appears to be more wrong with the installation than what's right.

Dtp1979

Op can you post pics of the Hotpress pipework

therealist85

Dtp1979 wrote: »

Op can you post pics of the Hotpress pipework

Ye I'll post picture in awhile

G2ECE

6kw is far too small to heat hot water and rads, it will just about heat a standard 150 litre cylinder.

12 metres distance between stove and cylinder is too far by right.

If its a dual boiler system, the boilers should not heat each other, non return valves are required.

sky6

Where in the system is the Expansion located.? it should be close to the Stove. Apart also from the Stove size issue I'd also say that you have little or no Gravity in the system.

therealist85

sky6 wrote: »

Where in the system is the Expansion located.? it should be close to the Stove. Apart also from the Stove size issue I'd also say that you have little or no Gravity in the system.

It's in the hot press

sky6

In my opinion you have an extremely poorly designed system. I suspect the only real gravity you have is when the Pump is running. is one pipe crossing in the attic and the other under the Landing floor.
The Cyl should be located ideally close to and above the stove but within a max distance of 8 to 9 Metres away.
The Expansion pipe and safety valve should be close to the Stove. The Stat should be also located at the stove and
set to 55 Degrees.
If your neighbour has the same stove and his is working properly that should tell you something. Check where their Cyl is located and how is their pipework run.

therealist85

sky6 wrote: »

In my opinion you have an extremely poorly designed system. I suspect the only real gravity you have is when the Pump is running. is one pipe crossing in the attic and the other under the Landing floor.
The Cyl should be located ideally close to and above the stove but within a max distance of 8 to 9 Metres away.
The Expansion pipe and safety valve should be close to the Stove. The Stat should be also located at the stove and
set to 55 Degrees.
If your neighbour has the same stove and his is working properly that should tell you something. Check where their Cyl is located and how is their pipework run.

Thanks for all the feedback very grateful I got a plumber down and the end result is pump and stat being moved down beside stove also to put in a non return valve stop it going to oil burner. But iv noticed water leaking out through the leg so it's just a disaster altogether