No more than vaillant, baxi, wb, bg etc etc etc which have been known to be mentioned and recommended now and again. Indeed, some people mention getting "aquapanel" from "Wickes"
The Marmox deck is a far better option when installing on wooden floors as it has a load of 470kg across 400mm centres without the need for a subfloor between the joists.
Wedi decks are ok, though in 22mm you need to form support as with Impey decks.
When installing in existing concrete floors it is better to use a 40mm deck as it is a little easier to cut out than 22mm.
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