My query, which I'm sure has been asked many times before, but never seem to hit the nail on the head for my scenario is how can I feed two shower heads simultaneously for a good long soak with my 35 kw combi.
Cost is a huge factor here and non vented cylinders are quite frankly out. My idea was to use a standard cylinder with immersion for backup connected solely to this shower. So how i want it to work is that the cylinder can be heated via the combi to x degrees then stop via thermostatic valve. As the shower runs the cylinder is topped up via the combi to keep the hot water coming beyond the capacity of the cylinder alone. If the cylinder runs dry, stopped from truly doing so with an electronic float switch, then the float switch activates a valve to divert the combi hot water from the cylinder directly to the shower to save me/us from freezing whilst being able to rinse. I hope to be able to control the flow between combi, shower and cold feed with valves, in line thermostats, some inventive wiring and a simple retractable switch so at first click the cylinder is heated via the combi and at float switch activation is topped up via cold feed.
I know it's not standard, but please, if you think it can't be done please explain why, after all, I am a mere sparky...
Cost is a huge factor here and non vented cylinders are quite frankly out. My idea was to use a standard cylinder with immersion for backup connected solely to this shower. So how i want it to work is that the cylinder can be heated via the combi to x degrees then stop via thermostatic valve. As the shower runs the cylinder is topped up via the combi to keep the hot water coming beyond the capacity of the cylinder alone. If the cylinder runs dry, stopped from truly doing so with an electronic float switch, then the float switch activates a valve to divert the combi hot water from the cylinder directly to the shower to save me/us from freezing whilst being able to rinse. I hope to be able to control the flow between combi, shower and cold feed with valves, in line thermostats, some inventive wiring and a simple retractable switch so at first click the cylinder is heated via the combi and at float switch activation is topped up via cold feed.
I know it's not standard, but please, if you think it can't be done please explain why, after all, I am a mere sparky...