Adding a washing machine in my garage close to boiler?

[Kmurphy]

I am insulating my garage and moving my old kitchen there with sink and washing machine. The boiler is also out there and the stack pipe is against one of the walls.

Originally I’d planned to run hot/cold water and waste into a toilet inside the house. I’ve seen some straps with universal bosses that I could use to take the waste into the stack.

So, is there any reason I can’t tap the hot/cold directly in/out of the boiler and run 40mm pipe out to the stack pipe?

I don’t think freezing would be an issue. I can lag the pipes and run them in a warm space in between insulation and brick etc. The boiler has an auto freeze stop if it ever goes below 4degrees (which it never has triggered) and I might stick a temperature monitor over the winter and see JIC.

 

[Kmurphy]

Boiler in question

 

[Kmurphy]

I would need to crossover the condensate pipe, maybe push to fit installation?

 

[fixitflav]

Perhaps I'm being slow, but I can't understand what you're trying to do.

is there any reason I can’t tap the hot/cold directly in/out of the boiler

If you mean supplying the sink taps from the boiler flow and return pipes, definitely NOT!

 

[Kmurphy]

Well compression T on the incoming cold and outgoing hot water, not the central heating rad feeds

 

[fixitflav]

Well compression T on the incoming cold and outgoing hot water, not the central heating rad feeds

OK if it's a combi boiler, I hadn't spotted that

 

[Madrab]

Yes you can tee off the hot and cold @ the boiler. Though if it's a modern washing machine, then chances are it'll just be a cold feed,

If you also have easy access to the soil stack too then yes a boss connection should also be fine to run the WM waste out to.