soild fuel range, pump and thermostat issues

vmg

Hi all,

I have replaced an old solid fuel system in my house with a stanley donard range (solid fuel). the house already has oil centrel heating run off a timer switch. now the tech part (not that up on plumbing) the range has been plumbed with its own seperate pump this pump has to be turned on manually to circulate water when runing range and oil this is fine as oil pump circulates water but running range solo the pump must be turned on by switch this is fine except when you have to go out or going to bed as pump is runing and system cools down and now cold water is being circulated which in turn cools down water in hot water tank:eek:

i was thinking a stat on range system which can be turned on manually from existing switch so when water gets up to temp it circutales and down on temp stops saving precious hot water in cyclinder

any help or sugestions greatly appriciated

Stove Fan

Hi,

You need to get a pipe thermostat fitted.

It will automatically turn the pump on at a set temperature (reduces condensation on the back boiler and prolongs it's life) and when the fire dies down too low will switch the pump off automatically.

How good are you at wiring, as if a novice get a plumber/electrician to wire it in?

Stove Fan:)

vmg

thanks for reply

yea was thinking that, do you think because there are two pumps one on each system the stat should be put on a switch as when range is on turn on switch giving power to stat which will in turn power pump on range, as think if not on switch when oil is on the new stat might send power to pump on range and then two pumps are working dunno if this will be a problem

not too bad at wiring reckon i know how to do it both ways but making sure this is right solution:)

Marcanthony

vmg wrote: »

Hi all,

I have replaced an old solid fuel system in my house with a stanley donard range (solid fuel). the house already has oil centrel heating run off a timer switch. now the tech part (not that up on plumbing) the range has been plumbed with its own seperate pump this pump has to be turned on manually to circulate water when runing range and oil this is fine as oil pump circulates water but running range solo the pump must be turned on by switch this is fine except when you have to go out or going to bed as pump is runing and system cools down and now cold water is being circulated which in turn cools down water in hot water tank:eek:

i was thinking a stat on range system which can be turned on manually from existing switch so when water gets up to temp it circutales and down on temp stops saving precious hot water in cyclinder.
any help or sugestions greatly appriciated

a pipe stat can be fitted to stop the pump running cold water via the cylinder coil. is the stove just heating the cylinder or rads aswell?

constant circulation can create condensation.

Stove Fan

vmg wrote: »

thanks for reply

yea was thinking that, do you think because there are two pumps one on each system the stat should be put on a switch as when range is on turn on switch giving power to stat which will in turn power pump on range, as think if not on switch when oil is on the new stat might send power to pump on range and then two pumps are working dunno if this will be a problem

not too bad at wiring reckon i know how to do it both ways but making sure this is right solution:)

Yes it would be a good idea to wire in a switch, should be anyway (fused connection unit) to power the new pipe thermostat and pump on the solid fuel range.

You are worried if you have the oil heating on and because the pipes on the range get hot it could come up to temp on the pipe thermostat and run the pump on the range as well ?

Your range pipework should not be heating up with the oil boiler if it's plumbed correctly. You should have a twin coil cylinder. one coil heating by oil the other solid fuel. You could fit the pipe thermostat between the pipe to the top coil of the cylinder or nearer the stove.

But fitting the FCU would enable you to isolate the electricity to the range if having the oil boiler on, it does heat the pipework to the range.

Stove Fan:)

vmg

thanks

yea heating rads aswell, when the oil is on yea i think pipe work gets hot the system apperently can work together acording to guy that plumbed it in(cowboy back three times to fix water mains leaking) but like all jobs on old houses he had to plumb the range into the original old system. still only finishing off some other loose ends but think i can use oil to get water up to temp and then switch to solid fuel to keep water warm as i have an abundance of wood.

so should i put thermostat near pump which is on bottom outlet or on top outlet which goes to hot press and into cyclinder

Marcanthony

vmg wrote: »

thanks

yea heating rads aswell, when the oil is on yea i think pipe work gets hot the system apperently can work together acording to guy that plumbed it in(cowboy back three times to fix water mains leaking) but like all jobs on old houses he had to plumb the range into the original old system. still only finishing off some other loose ends but think i can use oil to get water up to temp and then switch to solid fuel to keep water warm as i have an abundance of wood.

so should i put thermostat near pump which is on bottom outlet or on top outlet which goes to hot press and into cyclinder

ill give you best design and poss problems later in the post.I WOULD LOVE TO HEAR HOW THE STOVE MEN ON THIS SITE WOULD DO IT FIRST. WE HAVE ONE (STOVE MAN) IN THE THREAD ALREADY TO GIVE ADVISE. ANY MORE STOVE FANS OUT THERE?

Stove Fan

vmg wrote: »

thanks

yea heating rads aswell, when the oil is on yea i think pipe work gets hot the system apperently can work together acording to guy that plumbed it in(cowboy back three times to fix water mains leaking) but like all jobs on old houses he had to plumb the range into the original old system. still only finishing off some other loose ends but think i can use oil to get water up to temp and then switch to solid fuel to keep water warm as i have an abundance of wood.

so should i put thermostat near pump which is on bottom outlet or on top outlet which goes to hot press and into cyclinder

Fit the pipe thermostat on the return from the cylinder and set it to no less than 40 degrees. Your pump is on the return side and is how stanley shows it. My pipe thermostat is on the primary flow to cylinder and works a treat. Stove Fan

Stove Fan

Marcanthony wrote: »

ill give you best design and poss problems later in the post.I WOULD LOVE TO HEAR HOW THE STOVE MEN ON THIS SITE WOULD DO IT FIRST. WE HAVE ONE (STOVE MAN) IN THE THREAD ALREADY TO GIVE ADVISE. ANY MORE STOVE FANS OUT THERE?

Have I pxxxxd you off in some way? Why are you so rude to me? Personal and sarcastic insults have no place on a public forum.

Stove Fan:)

demanufactured

Stove Fan wrote: »

Fit the pipe thermostat on the return from the cylinder and set it to no less than 40 degrees. Your pump is on the return side and is how stanley shows it. My pipe thermostat is on the primary flow to cylinder and works a treat. Stove Fan

Dont you mean fit it on the hot pipe from the range??

Stove Fan

demanufactured wrote: »

Dont you mean fit it on the hot pipe from the range??

Hi, Stanley show it being fitted on the gravity return from the cylinder.

http://www.waterfordstanley.com/SiteImages/Site_131/PDF/DonardSolidFuelManual.pdf

It's on page 7. Mine is on the gravity flow and works fine.

Don't like the isolating valve on the cold feed to boiler.

Stove Fan:)

vmg

thanks for help stove fan, i read that manual page to page but never looked at the plumbing diagram prob because it looks more complicated than it is:o. I have taken a few pictures of behind range and hot press reckon i know where im going now but any more help is always greatly appriciated.

pictures are not great but can get an idea of whats happening

vmg

one more picture

vmg

the first picture(84) shows on left the two pipes coming from oil heating, the system is open vented

Hope somebody can shine a little light on theese to educate me a little more!!!

Thanks again

Stove Fan

On the hot water cylinder there should be two pairs of heating coils. Is there 2 pipes to the cylinder above each other into both sides of the cylinder. 4 in total 2 each side. On the return gravity coil is where the pipe stat should be from the range. Can only see one pair. Could do with a photo showing mainly the cylinder as its very hard to follow the pipe routes when there is a maze of piping. I would say light the fire only and see which pipes heat up. I presume it's gravity circulation to cylinder and cylinder is higher than the range. Lighting the fire will find the gravity circuit to the cylinder and then follow the return and fit the pipe stat.

Stove Fan:)