I have recently had a Gledhill Envirofoam Stainless Steel SE 42x16 IND Hot Water Water Cylinder (HWC) installed to replace an aging copper cylinder.
With the copper cylinder I had a Surrey Flange, one outlet of which served my main use kitchen-bathroom and the other went across to my extension and served the en-suite with hot water to the sink-bidet and Aqualisa Quartz power shower. This system worked perfectly.
The new HWC has two outlet tappings, one on the top which is being used to provide hot water to my main building and a power shower tapping on the side which as the cylinder has a dip pipe attached to the shower tapping to stop air transferring to the shower and serves the en-suite.
The outlet at the top is always hot but the side tapping is only warm and doesn't even get as hot when water is drawn off in the en-suite, using either the taps or the power shower.
Heating for the HWC is being provided by a 27 inch immersion heater on the top until we switch our oil boiler back on again. Previously we had always heated with oil except in an emergency so this is the only difference.
We are now finding that beside the difference in temperature between the two tappings which is strange, if we run 2 showers in the en-suite within a short time of each other e.g an hour, then although the second shower starts off hot is gradually gets colder.
Gledhill have suggested the problem may be back feed from the cold tank possibly from a blending valve that is pushing back to the pump causing temperature fluctuation but I can't believe this is the case because everything was fine before fitting the new HWC and it would have to be a major coincidence for it to start playing up just at the same time as the new HWC.
Anyone got any clues as to what might be happening?
FOOTNOTE
My granddaughter has just run a shower and again the water started to run cold. I'd had my shave and no problem and no other shower run this morning. Just checked shower tapping and it's cool. My energy meter shows the immersion heater running.Beginning to think there is a problem with the tank (perhaps the power shower tapping) itself because running hot from the tap in en-suite was also cool although kitchen tap (served from top tapping) hot so clearly nothing to do with power shower?
With the copper cylinder I had a Surrey Flange, one outlet of which served my main use kitchen-bathroom and the other went across to my extension and served the en-suite with hot water to the sink-bidet and Aqualisa Quartz power shower. This system worked perfectly.
The new HWC has two outlet tappings, one on the top which is being used to provide hot water to my main building and a power shower tapping on the side which as the cylinder has a dip pipe attached to the shower tapping to stop air transferring to the shower and serves the en-suite.
The outlet at the top is always hot but the side tapping is only warm and doesn't even get as hot when water is drawn off in the en-suite, using either the taps or the power shower.
Heating for the HWC is being provided by a 27 inch immersion heater on the top until we switch our oil boiler back on again. Previously we had always heated with oil except in an emergency so this is the only difference.
We are now finding that beside the difference in temperature between the two tappings which is strange, if we run 2 showers in the en-suite within a short time of each other e.g an hour, then although the second shower starts off hot is gradually gets colder.
Gledhill have suggested the problem may be back feed from the cold tank possibly from a blending valve that is pushing back to the pump causing temperature fluctuation but I can't believe this is the case because everything was fine before fitting the new HWC and it would have to be a major coincidence for it to start playing up just at the same time as the new HWC.
Anyone got any clues as to what might be happening?
FOOTNOTE
My granddaughter has just run a shower and again the water started to run cold. I'd had my shave and no problem and no other shower run this morning. Just checked shower tapping and it's cool. My energy meter shows the immersion heater running.Beginning to think there is a problem with the tank (perhaps the power shower tapping) itself because running hot from the tap in en-suite was also cool although kitchen tap (served from top tapping) hot so clearly nothing to do with power shower?