koikeeper said:You will also need a heat exchanger & Digistat to control the pond temp, if is a combi for the house heating & the pond it will need a couple of zone valves on it. you will be surprised how inexpensive it can be to heat if you stick to the ambient temp, the idea to heat a koi pond is to stop the temp fluctuating too much.
john
im only the man to put the boiler in,, i know the guy has spent thousands on filtration systems etc and he has some sort of room/temp stat to wire into combi.
he only wants it to keep it too 11' for the spawning or something god only knows guys.
BTW koi keeper in newcastle i know a guy who has a load of koi for sale including pumps, filters etc 500 quid for the lot.. at least 10-15 koi, schubumkin or something and a few others. the koi are breeding too