Pros and cons of running boiler gas supply pipe indoors Vs outdoors

[u0362565]

Hi all,

Does anyone have any feedback as to which is best. Running the pipe from the outdoor gas meter to a new boiler on an outside wall or run the pipe under the floor (suspended timber) which is our existing setup and the new boiler is being sited in same location as old. I ask just in general but also because one contractor wants to charge double for fitting new combi & running the supply under the floor compared to along an outside wall. This is mainly due to unknowns of not knowing situation under floor I believe. Another contractor is not charging more for running under floor which I thought was interesting. Thanks for the advice

 

[fowlerboi]

Under the floor will probably take a day longer depending on where the boiler is.

I can't believe the second bloke hasn't allowed for that in some way or another.

 

[gmartine]

One option isn't any better than the other except for ones visual impact on an external wall. I don't like the sound of either quote tbh, one sounds like they might be taking a punt and charging double and the other sounds like they are not charging enough to get the work.

Are you are providing the boiler?

 

[u0362565]

Under the floor will probably take a day longer depending on where the boiler is.

I can't believe the second bloke hasn't allowed for that in some way or another.

Yes would take longer I agree, time is money. What can I say.The one happy to go under floor didn't even suggest running it externally.

 

[fowlerboi]

Yes would take longer I agree, time is money. What can I say.The one happy to go under floor didn't even suggest running it externally.

What figures did each quote give you?

 

[u0362565]

What figures did each quote give you?

I dont want to get into the specific numbers really. I was more intereated in whether one method is better than the other. I assume for any maintenance running pipes externally is better for the plumber but then it weathers more than being under floor and is more unsightly, I guess those are the differences..

 

[u0362565]

One option isn't any better than the other except for ones visual impact on an external wall. I don't like the sound of either quote tbh, one sounds like they might be taking a punt and charging double and the other sounds like they are not charging enough to get the work.

Are you are providing the boiler?

They are providing the new boiler in either case. I suspect one basically doesn't want the hassle of pulling up floors when there is a much easier option so he's saying under floor would be double price to put us off is my feeling, I realise it would add time but there is a route already there so it has been done in the past. It's not starting anew.

 

[fowlerboi]

Using my house for an example. Boiler in the kitchen at the back, gas box at the front.

2 people required to move furniture to get to carpet, peel carpet back neatly. 1hr of labour

Lift floor boards which run the wrong way to the run. 20+ boards all to be cut and de-nailed. 1.5 hrs of labour

Remove old gas pipe, drill bigger holes through noggins get clip run set up core through wall in larger duct for bigger pipe. 1.5hrs of labour

Fit new pipe at 5m including maybe 6 fittings to get it out of the wall. 1hr of labour

Put back all the boards, drilling and screwing, vacuum, put carpet back and move furniture (again 2 people) 1.5hrs labour

That's just the lounge, you've then got the hall way and the kitchen to do of which the kitchen isn't carpet so laminate flooring would need to be lifted and re-laid. If you have chipboard flooring instead of floorboards then you need to allow a couple sheets of chipboard into the price and add another 1hr of labour.

Realistically I would have 2 people one working from each room and knock off the pipe run in a day which would be 2 days labour.

 

[u0362565]

Using my house for an example. Boiler in the kitchen at the back, gas box at the front.

2 people required to move furniture to get to carpet, peel carpet back neatly. 1hr of labour

Lift floor boards which run the wrong way to the run. 20+ boards all to be cut and de-nailed. 1.5 hrs of labour

Remove old gas pipe, drill bigger holes through noggins get clip run set up core through wall in larger duct for bigger pipe. 1.5hrs of labour

Fit new pipe at 5m including maybe 6 fittings to get it out of the wall. 1hr of labour

Put back all the boards, drilling and screwing, vacuum, put carpet back and move furniture (again 2 people) 1.5hrs labour

That's just the lounge, you've then got the hall way and the kitchen to do of which the kitchen isn't carpet so laminate flooring would need to be lifted and re-laid. If you have chipboard flooring instead of floorboards then you need to allow a couple sheets of chipboard into the price and add another 1hr of labour.

Realistically I would have 2 people one working from each room and knock off the pipe run in a day which would be 2 days labour.

That's good insight thanks. My incling is to have the pipework under the floor despite the mess and work.

 

[fowlerboi]

That's good insight thanks. My incling is to have the pipework under the floor despite the mess and work.

I would do the same for aesthetics. But then again I don't have to worry about the costs because I can do it my self.