Hi All,

 

Wasn''t sure which thread this would come under as it relates to both floor structure and heating install.

 

In about six weeks time we will be having our Heat Geek ASHP installation.  We have chosen to go with the Newark HG250A cylinder but on looking more closely at the figures for this and it's bigger brother HG300A  I'm now leaning towards the HG300A for a minimal price increase.

 

 

My question is about whether the floor structure would take the additional weight or even if it would take the weight of the HG250A?  Should the installer assess this or is it my responsibility to get structural calcs done?

 

The floor is posi joist as the design below:

 

The red circle shows the proposed location of the tank.

 

Any advice would be appreciated.

 

Regards

 

Mark

 

Ask your floor designers to factor in the tank.  You need to be sure as it is a long term load.

Thanks for the response but unfortunately the floor is already in.  I'll go back to them and ask the question.

 

Thanks

Just now, bradders3109 said:

I'll go back to them

You must ensure that the tank sits on joists, not only on flooring. If it can be spread over 3 rather than 2 then that is  a big difference.

To do that I suggest  relocating it a tad if that works for the room, and anyway, putting a thick plywood  base board down to spread the load wider (in both directions) as well as directing it to the joists. 

 

No sums done by me, but it is likely to be ok as you are so close to the ends of the joists and the beam. There isn't a grand piano on the other end is there?

 

Floor designer has redone the clacs based on a 500kg point load and the joists will be fine.  I will however spread the load over three joists as suggested.  Thanks.

 

The ministry of fun will now be able to shower at her leisure without worrying about how much water she's using.

 

Happy days.

Edited October 2, 20242 yr by bradders3109