Biomass basic question

[Moorsman61]

Hi wonder if you can help me with some basic info re fitting a pellet boiler about 15m from the house. Doing some basic costing and am wondering if I need to run separate feed a d return pipes for hot water and heating ie 4 pipes or if it can all be handled by a single pair of pipes. Heatstore would be In the garage as well. 

Regards kev 

[openspaceman]

22 minutes ago, Moorsman61 said:

Hi wonder if you can help me with some basic info re fitting a pellet boiler about 15m from the house. Doing some basic costing and am wondering if I need to run separate feed a d return pipes for hot water and heating ie 4 pipes or if it can all be handled by a single pair of pipes. Heatstore would be In the garage as well. 

Regards kev 

Most likely you would run a heat main from the boiler and thermal store into the house and use plate heat exchangers to supply CHW and DHW in the house using pre insulated pipe and hope the installers don't rupture them. Pricey

 

Pre -insulated pipe, Underground heating pipes, heat mains insulated pipe

INGOODNIC.UK

---

32 + 32 /110mm Pre Insulated Heating Pipe

 

[Moorsman61]

Well I I rupture the pipe it will be down to me lol. 

As I will be doing all of the basic prep and installation. 

Yes it's some expensive kit involved. 

Regards kev 

[TuscanPhil]

Hi Kev, I have a biomass central heating system - boiler and thermal store in my garage and pipes running to the house.  My distance from store to house is probably 20m or so.  My installers ran a pair of pipes to my pumping station where it then breaks into 3 systems (ie 3 pumps), 1 for DHW and 2 for CH (one downstairs loop, one upstairs loop).  Insulated pipe is buried in the ground between the garage and house, pipework in the garage is just insulated with pipe covering foam stuff - I could probably add some more but too many other jobs....  I have one set of isolating valves, which disconnects the house from the boiler/store and then magnaclean filters on each CH circuit with their isolation valves.  I don't have any way of individually isolating one circuit from another though.

[Baldbloke]

Hi wonder if you can help me with some basic info re fitting a pellet boiler about 15m from the house. Doing some basic costing and am wondering if I need to run separate feed a d return pipes for hot water and heating ie 4 pipes or if it can all be handled by a single pair of pipes. Heatstore would be In the garage as well. 
Regards kev 

Our biomass is about 20 metres from the house. An insulated hot feed and return (two pipes within one insulated casing) run underground to a room within the house where there’s a timer and splitters to run the radiators and then a feed off of that going through a coil within the hot water tank. Ours is slightly more involved as I retained the oil boiler in case heating oil prices makes cutting logs or feeding pellets not worth the effort. Such a year was last year when I fired up the biomass only twice. This year I’m going to have to get cutting[emoji2]