MVHR duct lagging ideas

[Alfow]

Hello all 

 

Has anybody any suggestions for pipe lagging to suit 125mm and 100mm rigid spiral ducting. 

We have 20m or so running through what can best be described as a loft space that is a good bit cooler than the rest of the building. I’m aware that we may be losing some heat from these pipes both before and after it has been through the heat exchanger so want to do something to minimise it. 

 

Any suggestions gratefully received. 

 

[PeterW]

Welcome. 
 

There are two standard products for this - either fibreglass / Rockwool foil backed insulation or nitrile rubber insulation. 
 

Both are fairly easy to install if you have patience - the main difference is the nitrile products are better bonded to the ducting with impact adhesive where the foil / fibre products are better fitted with tape joins and not stuck to the ducts. 
 

You will probably be looking at £6-8/m installed if you do it yourself. 

 

[Alfow]

3 hours ago, PeterW said:

Welcome. 
 

There are two standard products for this - either fibreglass / Rockwool foil backed insulation or nitrile rubber insulation. 
 

Both are fairly easy to install if you have patience - the main difference is the nitrile products are better bonded to the ducting with impact adhesive where the foil / fibre products are better fitted with tape joins and not stuck to the ducts. 
 

You will probably be looking at £6-8/m installed if you do it yourself. 

 

 

Thanks. 

Have you any product names or suppliers for me to look up please? 

[PeterW]

Either Armaflex or InsulTube for the nitrile and check one of the MVHR suppliers 

[Alfow]

1 hour ago, PeterW said:

Either Armaflex or InsulTube for the nitrile and check one of the MVHR suppliers 

Many thanks.