Was trying to remember who you used the other day - NuHeat are a bit on the pricey side, although their customer service is good. Needed a cheaper system for a job I was doing, will look Ambiente upAmbiente of Welwyn. I've stopped using Nuheat because of price and leaky blenders.
Using Ambiente on a couple of big jobs at the moment. Carlson is very helpful and a jolly nice chap. I live 5 mins from them so went for a face to face. They're a very large organisation and the backup that comes with that is essential.
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