Hi all
Last year our hot water tank sprang a leak, so had to replace the tank, which is a standard direct 900 x 450 which had a lower side mounted immersion heater, old and new tanks were/are foam lagged
We have no other means of heating except an immersion heater
It has a timer and used to be on two hours in the morning and an hour before evening, never had a real problem with running out of hot water then
Replaced the tank which was only available with a top mounted immersion element, so had to fit a new longer element
I set the new to the same temperature as the old one (55 degrees) but found it wasn't heating the water enough for two showers, water was just warm, not hot
So changed it to 60degrees, that appeared slightly better temperature wise but didn't heat as much water as the old set up
So changed the times on to four hours in the morning, this was better but still only heats the top section of the tank and lasts two showers or so
So my question being, and I realise there is no set answer but am looking for a ball park figure
How long should an immersion heater take to heat a tank of water up as four hours seems way over compared to the previous tank and should it heat the whole tank
I am trying to determine what if anything is the problem
Many thanks for any feedback
Last year our hot water tank sprang a leak, so had to replace the tank, which is a standard direct 900 x 450 which had a lower side mounted immersion heater, old and new tanks were/are foam lagged
We have no other means of heating except an immersion heater
It has a timer and used to be on two hours in the morning and an hour before evening, never had a real problem with running out of hot water then
Replaced the tank which was only available with a top mounted immersion element, so had to fit a new longer element
I set the new to the same temperature as the old one (55 degrees) but found it wasn't heating the water enough for two showers, water was just warm, not hot
So changed it to 60degrees, that appeared slightly better temperature wise but didn't heat as much water as the old set up
So changed the times on to four hours in the morning, this was better but still only heats the top section of the tank and lasts two showers or so
So my question being, and I realise there is no set answer but am looking for a ball park figure
How long should an immersion heater take to heat a tank of water up as four hours seems way over compared to the previous tank and should it heat the whole tank
I am trying to determine what if anything is the problem
Many thanks for any feedback