H2 Panel.

[Dotty]

I'm closing this thread for now as this forum really is meant to be for reviews, not general discussion.

But when I get in later I'll perform some modding magic and split the discussion bit away into a different forum.

Cheers guys.

 

[Dotty]

Had a think on this, thread moved and reopened.

 

[Killy Bing]

Hmm parents place we are about to redo all the downstairs floors in underfloor heating.

having a large wood burner with a back boiler already i'm considering this!?

 

[Ermintrude]

Woodburner and ufh! Need a whopping thermal store Kb . Bit like a bio mass ? Huge volume store on gravity to fire and then a plate to plate for the domestic or an unvented on gas or oil for DHW?

 

[Killy Bing]

Looks like the beauty of this system ermi

H2 UFH layout

 

[Ermintrude]

But the economic benefits are low if using solid fuel intermittently and topping off with oil or gas? You have both boilers and a h2 panel and lots of other bits. Expensive way of harvesting a little heat? If stove on house will be hot and ufh stops circulating and then when house cold u use oil to heat. Thermal store stores heat till it's useful?

 

[Gray0689]

But the economic benefits are low if using solid fuel intermittently and topping off with oil or gas? You have both boilers and a h2 panel and lots of other bits. Expensive way of harvesting a little heat? If stove on house will be hot and ufh stops circulating and then when house cold u use oil to heat. Thermal store stores heat till it's useful?

Or just put in a buffer don't need a huge one
A direct cylinder18x36 usually is fine

 

[Ermintrude]

http://heatweb.com/Wood/index.htm

 

[Killy Bing]

Well i want to read up on the design but i was thinking a buffer tank.

i do have a spare 3000 litre thermal store though..........

 

[Gray0689]

Well i want to read up on the design but i was thinking a buffer tank.

i do have a spare 3000 litre thermal store though..........

Lol you will need a bloody big stove then lol

 

[SimonG]

Simon, how did this job go, and what were your conclusions?

Still waiting to complete it. Its been running a while just on the oil boiler. It will probably be the summer before they can afford the stove.

 

[wetdrip]

Still waiting to complete it. Its been running a while just on the oil boiler. It will probably be the summer before they can afford the stove.

Thanks for getting back Simon.Looking forward to hearing your final conclusions.

 

[Pipes Plumbing]

H2 panels are good at what they do, and I have fitted a fair few over the recent years. I am using them less and less now though, as I find I can make a better system for less cost (more profit) by doing it differently...

If the property already has S or Y plan fitted, it works out a lot cheaper to use a low loss header or even one of the neutralisers from Dunsley.
This works well where a stove is to go gravity only too, so long as the llh is sited and piped right... The stove's gravity flow goes to the header with a heat leak in parallel and is then pumped off from there to where it's needed.
My business is 90% solid fuel and biomass, I'd be happy to help with any questions anyone has too but don't get a lot of time to be on here so drop me a PM if I can help...

 

[Dotty]

H2 panels are good at what they do, and I have fitted a fair few over the recent years. I am using them less and less now though, as I find I can make a better system for less cost (more profit) by doing it differently...

If the property already has S or Y plan fitted, it works out a lot cheaper to use a low loss header or even one of the neutralisers from Dunsley.
This works well where a stove is to go gravity only too, so long as the llh is sited and piped right... The stove's gravity flow goes to the header with a heat leak in parallel and is then pumped off from there to where it's needed.
My business is 90% solid fuel and biomass, I'd be happy to help with any questions anyone has too but don't get a lot of time to be on here so drop me a PM if I can help...

Now that's an interesting post!

 

[Gray0689]

H2 panels are good at what they do, and I have fitted a fair few over the recent years. I am using them less and less now though, as I find I can make a better system for less cost (more profit) by doing it differently...

If the property already has S or Y plan fitted, it works out a lot cheaper to use a low loss header or even one of the neutralisers from Dunsley.
This works well where a stove is to go gravity only too, so long as the llh is sited and piped right... The stove's gravity flow goes to the header with a heat leak in parallel and is then pumped off from there to where it's needed.
My business is 90% solid fuel and biomass, I'd be happy to help with any questions anyone has too but don't get a lot of time to be on here so drop me a PM if I can help...

But in an unvented cylinder it's either a h2 panel or a buffer as far as I'm made aware
I've fitted a few with buffer but never h2 but I'd deffo like to try it at some point

The way you do it is a pretty standard practice over here