Hi,
I have a conventional hot water system with a 25 gallon cold tank in the loft, and a 125 litre hot water cylinder in the airing cupboard. My bath cold tap is fed from the rising main.
I'd like to fit a pumped shower. The manufacturers instructions state that the cold tank must be a minimum of 50 gallons. Mine is only 25.
I'm doubtful that the floor in the loft is strong enough to take a 50 gallon tank, never mind the difficulty of actually getting one in.
Obviously, to fit the shower i need to take a cold feed from the tank to the shower so that the hot/cold supplies are similar pressures. How much of a problem is a small tank going to be?
Is the problem solely based around running out of water? If so, could I get away with improving the fill rate of the tank (by adding more ball valves ( the water supply to the tank is in 22mm except for the last metre or so)?
Since I have only 125 litres of hot, assuming a 50:50 mix rate, then i'll run out of hot water at a similar time to the tank emptying (ignoring any extra water from the simultaneous fill), so is there therefore no problem.
Am I missing anything? what would you pro plumbers do?
Thanks
slip
I have a conventional hot water system with a 25 gallon cold tank in the loft, and a 125 litre hot water cylinder in the airing cupboard. My bath cold tap is fed from the rising main.
I'd like to fit a pumped shower. The manufacturers instructions state that the cold tank must be a minimum of 50 gallons. Mine is only 25.
I'm doubtful that the floor in the loft is strong enough to take a 50 gallon tank, never mind the difficulty of actually getting one in.
Obviously, to fit the shower i need to take a cold feed from the tank to the shower so that the hot/cold supplies are similar pressures. How much of a problem is a small tank going to be?
Is the problem solely based around running out of water? If so, could I get away with improving the fill rate of the tank (by adding more ball valves ( the water supply to the tank is in 22mm except for the last metre or so)?
Since I have only 125 litres of hot, assuming a 50:50 mix rate, then i'll run out of hot water at a similar time to the tank emptying (ignoring any extra water from the simultaneous fill), so is there therefore no problem.
Am I missing anything? what would you pro plumbers do?
Thanks
slip