We have an outbuilding with a 9.8kW instant water heater serving a basin and a shower. There's no gas supply and no space for a tank.
The shower has a thermostatic mixer valve and really should be off a gravity fed system or combi as it doesn't do much better than a warm dribble at this time of year.
Someone suggested it might be possible to raise the temperature of the shower, without reducing flow, by adding a second water heater in series with the first. Sounds logical to a non-plumber, but is there an obvious reason why this won't work? (assuming we can sort out the electrics).
The other question - we understand that instant water heaters aren't recommended for use with thermostatic showers in the first place? I'd like to understand why this is the case (other than the performance being rubbish - I thought there might actually be safety reasons?)
Many thanks,
Alan.
The shower has a thermostatic mixer valve and really should be off a gravity fed system or combi as it doesn't do much better than a warm dribble at this time of year.
Someone suggested it might be possible to raise the temperature of the shower, without reducing flow, by adding a second water heater in series with the first. Sounds logical to a non-plumber, but is there an obvious reason why this won't work? (assuming we can sort out the electrics).
The other question - we understand that instant water heaters aren't recommended for use with thermostatic showers in the first place? I'd like to understand why this is the case (other than the performance being rubbish - I thought there might actually be safety reasons?)
Many thanks,
Alan.