Am looking for info regarding installing a new hot water cylinder but wanting to move it basically to the other side of the wall (approx 40 cm,) from where the old one is currently installed. I was wanting to know if the pipes need to be or even can be extended and would this be costly? I have other options such as shifting the cylinder much further into the house but realise that would incur a lot of new pipe work. Also what types are best for pressure these days and do we still need the roof pipe or are the ones vented underneath better?
fast4motion,
Feb 26, 10:35am
Yes the pipes can be extended. Do you have a concrete floor or a wooden floor (with decent underfloor access)? If it's the latter, it should be easy to position a new mains pressure cylinder (that's the one with no roof vent pipe, and better shower pressure) anywhere. Moving it further might not actually cost more if access in that position is better, and there are already hot and cold water lines nearby to tee into. Mains pressure cylinders need a drain for the tpr valve and cold-water expansion valve, again easy if you have underfloor access.
camino,
Feb 26, 6:00pm
Thanks fast4motion. The house is a 1950s wooden floor which I pan to do some renos on. There is excellent underfloor access. I have always been told shifting a hot water cylinder is a very expensive exercise?
supernova2,
Feb 26, 10:48pm
Moving to the other side of a wall with a wooden floor I think (obviously without seeing the job) should only take 2 hours at most for the actual plumbing work, a couple of fittings and a meter or so of pipe. You could keep the existing roof vent as long as there is ceiling space access.
Haven't made any allowance for the carpentry work to create the cupboard/tank stand etc. And you should have a sparky for the electrical connection work.
If you are buying a new cylinder have you thought of changing to a Gas califont system? If it were me I would.
trade4us2,
Feb 26, 10:57pm
If it's a low pressure cylinder and it's going to be moved, put it as high as possible so you get good shower pressure. You are better off with a roof pipe if possible, as the alternatives are unreliable and waste water.
m16d,
Feb 26, 11:18pm
Like they said. If your planning chucking a lot of money at it, then have a think about gas hot water and stove top. Much better system, and cheaper too.
Worth a thought when buying a mains pressure cylinder to consider a stainless steel one as they have a far longer warranty(25years) which I think outweighs the little extra price.
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