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View the thread, titled "Sizing Unvented Water Heater" which is posted in Bathroom Advice on UK Plumbers Forums.

W

Wet Bandit

Hi folks was wondering if anyone could help me out with this.

I'm going to replace an old cistern fed Santon water heater (with immersion wired to Economy 7) with a Heatrae Sadia unvented heater. I've checked that cold main's flow rate and pressure is adequate for pressurised and it's all good.

It will be serving 6 outlets in offices (kitchen sinks x 2 and basins x 4). I'd like to know what capacity would cut the mustard. Was leaning towards the Multipoint 30 litre!?! Heatrae Mutipoint 30 50 Water Heaters

Any suggestions would be appreciated. 🙂
 
design it individually for each tap open using 0.1 litres/second. do your own maths. post the result. then maybe youll get a few more pointers !!
 

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