Spurring Heating And Hot Water To Outbuilding

[EViS]

What options have we got to spur hot/cold water and central heating from a main house combi system, approx 2 metres across a garden and into an outbuilding which will house a new habitable room and bathroom? Are there any products on the market which would provide sufficient insulation to the pipes as they run in a trench through the garden?

 

[Howsie]

There are indeed. Get a trench shovel and a copy of the water regulations book and you should be fine. What are you doing with the waste water?

 

[Jonchivers]

Uponor do a great insulated under ground system that would be perfect for that

 

[R1CKY]

Was going to suggest the Uponor product. Never seen it in the flesh, but seems a good product.

 

[lame plumber]

not cheap though, order right length first time round or youll be crying when its too short.

 

[Jonchivers]

Was going to suggest the Uponor product. Never seen it in the flesh, but seems a good product.

Have seen it used on central wood chip boiler supplying 3 house each with heat meters. The heat loss between was very minimal.

 

[Ermintrude]

2 meters away? Trench going to be a bit of fun for every one! Is there wall or roof u can fix a cable tray on? Use plastic as more forgiving, insulate with kingspan cool therm 1 layer 1/2 and then one 1 1/2 outside that . Air transfers heat less readily than ground so u would waste less heat. Probably most economical method.

 

[EViS]

Thanks chaps, will take a look at Uponor's offering. Are there any other manufacturers which have similar products (as a price comparison exercise)?

 

[Jimbob]

Iv used the uponor pipe a fair bit. It's not great compared to the competitions in regards to heat loss and usually has a big back order. Where are you based? I have loads of sub 3m off cuts.

 

[SimonG]

I'd be going over ground in some insulated boxing. If it's really really cold you could always have heat trace linked to a frost stat.

 

[stevetheplumber]

+1 for a suspended boxing if its practical

 

[Ermintrude]

Fit a 150mm wide cable tray, lag plastic pipes with kingspan cool therm , two layers of concentric insulation. Cable tie insulated pipes to tray. U could box as well and fill with vamiculite?

 

[EViS]

Iv used the uponor pipe a fair bit. It's not great compared to the competitions in regards to heat loss and usually has a big back order. Where are you based? I have loads of sub 3m off cuts.

In the South East, I haven't measured the precise distance as of yet though. I take it you're in Devon?

 

[EViS]

I shall take a look at how practical some boxing will be. Otherwise a trench with plenty of kingspan lagging in a box may be a more cost effective option. Does anyone have a pricelist for the Uponor stuff and who stocks it?

 

[Jimbob]

Devon yes. Will be working Aylesbury way the week after next for the week if you know how long you need

 

[AWheating]

id put it all in the ground as im guessing your digging up anyway for drains and electrics. use the pipe in pipe type method imo. independant heating/hot water may be a better option?? thermal store, underfloor heating and solar panels?