Would a megaflo be ok in the garage

[recoveringbuilder]

Over the summer we will be changing our heating system. The plan is to have the new boiler in the garage and possibly a megaflo as we see no need for a thermal store if the boiler is feeding the heating directly. Would the megaflo be alright in the garage or would it take too long for the hot water to reach the house?

[TonyT]

As we don’t know the layout how could we comment.

 

if space saving meant this had to go in the garage I may be inclined to build a small cupboard and insulate it to reduce losses.

 

Hot water return circuit could minimise this along with smaller diameter pipework.

[SteamyTea]

7 hours ago, TonyT said:

if space saving meant this had to go in the garage I may be inclined to build a small cupboard and insulate it to reduce losses

Or a larger cupboard and put a decent amount of insulation in it.

Just make sure that it is also airtight and the insulation can be easily removed for maintenance/G3 testing.

And make sure any power cables are upgraded and installed correctly.

[PeterW]

9 hours ago, recoveringbuilder said:

Over the summer we will be changing our heating system. The plan is to have the new boiler in the garage and possibly a megaflo as we see no need for a thermal store if the boiler is feeding the heating directly. Would the megaflo be alright in the garage or would it take too long for the hot water to reach the house?

Garage inside the thermal envelope of the building with the exception of the door..? If so.. no issue with it but increase all the pipe insulation to 22/35mm Nitrile rubber (Armaflex/Insultube) not poly such as Climaflex and glue or tape all the joints. Also if you can, lift the tank off the floor on a stand made of 4x2 with a ply or chipboard top and insulate under the tank. Hot return would be a pain now unless you have a manifold somewhere near the old tank location ..?

[recoveringbuilder]

So I’m thinking it’s maybe not the best idea, the garage is detached from the house, pipes would need to go underground for 3-4 metres to get into the house. 

[PeterW]

That’s fine - you can insulate pipes underground but you need to put a frost stat in the garage to keep things moving in colder weather. 

[recoveringbuilder]

On 16/05/2021 at 22:05, PeterW said:

That’s fine - you can insulate pipes underground but you need to put a frost stat in the garage to keep things moving in colder weather. 

You don’t think it would take too long for the water to reach the taps/showers?

[PeterW]

Don’t think so as 3-4m is no worse than ordinary houses from the main tank. Worst case add a secondary return loop.