Hot water tank in 'loft'

[gti]

Hopefully you can help me. Ive just bought a dormer bungalow which has been extended (5 bed, 3 showers, 1 bath), unfortunately its still got a small vented hot water tank.


I would like to have a larger hot water tank, but there is no space where the current tank is. Although the other side of where the tank currently is, is a loft just above the front lounge, which has the space to house the tank and would be a matter putting in the correct support structure and insulating the loft as required.

Ive drawn out the current loft floor structure (above) and was intending to follow the support structure guidelines shown here. with the tank in either position a or b. (http://nhbccampaigns.co.uk/landingpages/techzone/previous_versions/2010/Part7/section2/appendix.htm)
The trusses are fink design.


Im going to follow the guidelines for fitting across at least 4 roof trusses (ott i know) although im looking at a hot water tank of 250l (297kg full) or 210l (254kg full)
For the support posts i was going to use 75mm x 100mm C24 timber (again a bit ott)

Does anyone have any guidance at all or see anything I may have missed?

Many thanks

Trev

 

[denso13]

As you say, a bit OTT, but looks ok. Remember a plywood base, not chipboard.

 

[ianmcd]

If you want the correct advice , stop calling it a Hot water tank, what you are proposing is installing an Unvented Hot water Cylinder, there is a mahoosive difference between the two

 

[gti]

Thanks for the reply, Will do Denso, was going to use marine ply for the base.

Hi Ian, thanks for the reply. its currently a vented cylinder (tank in the loft), im keeping the same setup for now as im not qualified to install an unvented setup. If funds allow i may look to get a qualified plumber to swap it all over to an system boiler and a unvented tank.