Which stove? (calling StoveFan!)

Caitriona

We're looking at installing a boiler stove (on a closed heating system but our plumber has emphasised that he's only willing to do it in such a way that it's safe, with no possibility of blowing things up - so that's okay, right?).

The sitting room is 5m x 4m, with a double doorway onto the dining room - we don't really need the stove to heat that room but a certain amount of heat would obviously escape since we took the doors down years ago.

We want to run the following rads (all in cm, all 50cm high):
2 x 105 doubles, 115 double, 3 x 105 singles, 85 single, 75 single, 45 single, and the hot water tank.

By my calculations we need about 5.5kW room heat and 10kW from the boiler. Is that about right? And what stove would anyone recommend for that setup?

Stove Fan

Caitriona wrote: »

We're looking at installing a boiler stove (on a closed heating system but our plumber has emphasised that he's only willing to do it in such a way that it's safe, with no possibility of blowing things up - so that's okay, right?).

The sitting room is 5m x 4m, with a double doorway onto the dining room - we don't really need the stove to heat that room but a certain amount of heat would obviously escape since we took the doors down years ago.

We want to run the following rads (all in cm, all 50cm high):
2 x 105 doubles, 115 double, 3 x 105 singles, 85 single, 75 single, 45 single, and the hot water tank.

By my calculations we need about 5.5kW room heat and 10kW from the boiler. Is that about right? And what stove would anyone recommend for that setup?

Hi:) Fitting a stove to a sealed heating system is one of the hardest things to do safely. In my opinion you would be best to just fit a non boiler stove.
It can be done but the info I have found is for systems in the UK so may not be to building/ plumbing regulations compliant here in Ireland. There is this company that have built a control system to link a combi or sealed system boiler with a boiler stove.
.http://www.h2panel.co.uk/h2layouts.htm

I would of thought that the cost of the control system, plumbing and stove purchase it would make the cost:eek::eek::eek: Could you replace your gas boiler to open vented? This would be the easiest but still not cheap.

Whatever you do make absolutely sure that the installer knows what he is doing.
99.9% of multifuel boiler stoves can not be installed into a pressurised heating system. Always consult the stove manufacturer, H2 designer, and plumber to ensure a safe install.
There is a aquatherm inset boiler stoves for pressurised heating systems, although they cost:(.
http://www.stovesonline.co.uk/wood_burning_stoves/Aquatherm-Eco-F15-insert-boiler-stove.html

Your heat calculations are correct.

Stove Fan.:)

Outkast_IRE

I agree with stove fan , sealed system and boiler stove together is one thing i would always reccomend against , and to do it usually means a lot of extra money.

What make and model are you current boiler i know for a fact some of the "sealed system " boilers can be converted into low pressure models with a set of codes and instructions from the manufactrer , glowworm being the one i have done it on before multiple times.

Caitriona

It's a Cosyman something-or-other, I think.

We've a stove installer coming out to have a look at things tomorrow so hopefully that'll put an end to the confusion and we can just get on with it whichever way.

newdad.com

Hi Guys, i am in the process of buying a stove has anyone come across this manufacturer and is 'wood burning' they way to go? In the stove showroom the description on the stove says it can burn wood (obviously), turf briquettes and 'occasional coal' any advise @Stove Fan? i am looking @ the Firepoint 360. We like the contemporary look of it. http://www.boscastoves.com/products/firepoint.php

Stove Fan

newdad.com wrote: »

Hi Guys, i am in the process of buying a stove has anyone come across this manufacturer and is 'wood burning' they way to go? In the stove showroom the description on the stove says it can burn wood (obviously), turf briquettes and 'occasional coal' any advise @Stove Fan? i am looking @ the Firepoint 360. We like the contemporary look of it. http://www.boscastoves.com/products/firepoint.php

Pm sent:)

creedp

newdad.com wrote: »

Hi Guys, i am in the process of buying a stove has anyone come across this manufacturer and is 'wood burning' they way to go? In the stove showroom the description on the stove says it can burn wood (obviously), turf briquettes and 'occasional coal' any advise @Stove Fan? i am looking @ the Firepoint 360. We like the contemporary look of it. http://www.boscastoves.com/products/firepoint.php

Why is it that the Regs and professionals in this area tell us that we have to have a fire retardent material up to 300mm in front of a stove and yet when you go to look at the publicity material especially for these 'contempoary' stoves they are sitting on a postage stamp? Does this not constitute false and misleading advertising?

Stove Fan

creedp wrote: »

Why is it that the Regs and professionals in this area tell us that we have to have a fire retardent material up to 300mm in front of a stove and yet when you go to look at the publicity material especially for these 'contempoary' stoves they are sitting on a postage stamp? Does this not constitute false and misleading advertising?

Yes it is misleading but most manufacturers have a notice in small print on the brochure to say the fireplace settings a only for illustration purposes only. You need 12 inches to front and 6 inches either side for the hearth. If you want a modern stove look for ones suitable for a 12mm hearth. generally these are where the fire is higher up. The hearth can be glass!!

Stove Fan:)

Caitriona

Right, the stove installer came yesterday and said it would be easy enough to put in a boiler stove. The heating will have to change to an open vented system but he said that's doable enough.

We're waiting for his quote to see if his definition of 'doable' and ours are the same.

In the meantime I'm looking at stoves (again!) and I've questions (again!).

We've worked out what size stove we need to heat the house, but how exactly will that work? If we get a stove that provides exactly the 10kW we need for the rads and water, do we have to keep a roaring fire in it when we want the whole house warm? We fine with our open fire that we generally let it calm down after a couple of hours because the room gets far too hot, but if we do the same with a stove will the rest of the house cool down? And if we need 5kW to heat the room, how hot does that make it? And what if we want to keep a smallish fire during the day just to heat the sitting room, then pour on the coal in the evening to heat the rest of the house? Is that feasible?

Stove Fan

Caitriona wrote: »

Right, the stove installer came yesterday and said it would be easy enough to put in a boiler stove. The heating will have to change to an open vented system but he said that's doable enough.

We're waiting for his quote to see if his definition of 'doable' and ours are the same.

In the meantime I'm looking at stoves (again!) and I've questions (again!).

We've worked out what size stove we need to heat the house, but how exactly will that work? If we get a stove that provides exactly the 10kW we need for the rads and water, do we have to keep a roaring fire in it when we want the whole house warm? We fine with our open fire that we generally let it calm down after a couple of hours because the room gets far too hot, but if we do the same with a stove will the rest of the house cool down? And if we need 5kW to heat the room, how hot does that make it? And what if we want to keep a smallish fire during the day just to heat the sitting room, then pour on the coal in the evening to heat the rest of the house? Is that feasible?

Hi:) Ideally get a stove with a bit bigger boiler than you need, at least then if you extend and add a radiator you have the extra capacity. As well if it's very cold it will heat up quicker.
Uprate the boiler size by around 20-30% especially if you only burn wood. Some stove manufacturers quote outputs for wood and coal seperately. You will need a good roaring fire for the first hour to heat the water and rads from cold but shouldn't need a roaring fire after.
If you imagine 5 x 1kw bars of an electric fire in your room that is how warm it would be.
Find out the kw required to heat the room that the stove is fitted in. Most stove manufacturers quote room output and the boiler output for their boiler stoves. Select a stove that fulfills your required room output and your boiler output.
Most boiler stoves produce between 3kw-5kw to the room the stove is in and as much as 7kw on some models.
Yes it would be possible to have a small fire to heat the room and hot water and then have a bigger fire to heat the rads.

Stove Fan.:)

Plombier

Fitting a stove to a sealed heating system is one of the hardest things to do safely.

This is just not true because you don't know how does not mean its difficult.

Whatever you do make absolutely sure that the installer knows what he is doing.

I agree entirely.

Stove Fan

Plombier wrote: »

This is just not true because you don't know how does not mean its difficult.



I agree entirely.

I do know how to do it safely but I'm not going to tell anyone who may try to replicate what I say on a forum or otherwise, and be liable when things go wrong

Would you advice someone how to carry out a gas installation. I thought not and quite rightly so.

Stove Fan:)

DoneDL

Plombier wrote: »

This is just not true because you don't know how does not mean its difficult.


Would you not be on the wrong side of building regulations which makes the install illegal. If it was a gas boiler would you not need confirmation from the manufacturer that you were permitted to do so.

Plombier

Stove Fan you advised,

In my opinion you would be best to just fit a non boiler stove.
It can be done but the info I have found is for systems in the UK so may not be to building/ plumbing regulations compliant here in Ireland.

It can be done quite simply and will comply with regulations.

DoneDL

Are you refering to the H2.

maddragon

Looking to put in a stove myself. House is approx 350 cubic metres in volume. Only electric heating currently in house with an open fire. Putting in a stove in the living room which is 5.9m x 3.2m x 2.45m (height). Would a 6kW stove be too large and in terms of the flue, is it sufficient to put in a flue liner from the stove to 2 m height up the chimney or do you have to line all the way up. There is a 200mm concrete flue there currently/

Sligo Stoves and Fireplaces

maddragon wrote: »

Looking to put in a stove myself. House is approx 350 cubic metres in volume. Only electric heating currently in house with an open fire. Putting in a stove in the living room which is 5.9m x 3.2m x 2.45m (height). Would a 6kW stove be too large and in terms of the flue, is it sufficient to put in a flue liner from the stove to 2 m height up the chimney or do you have to line all the way up. There is a 200mm concrete flue there currently/

From your measurements you will need about 3.5 kw of heat for the room. This is based on average insulation so a little less if well insulated and a little more if poorly insulated. The 6kw will be more than sufficient as its better to have a bit more heat than you need instead of not enough!
In terms of the flue, running a flexi liner to the top of the chimney and backfilling with vermicuilte is the best way to fit. It is possible to fit with flue piping from the stove to the start of the clay flue and use a tapered adaptor to go from the 5"/6" flue of the stove to 8" of the clay pot but the full liner would be the best way to do it.

maddragon

Thanks Sligostoves,

I was a bit concerned that the 6kw might be too much but it will be in a room with open access to the stairs so I suppose excess heat will disipate upstairs. I know its probably better to run a small stove hard than a big stove gently.