Home DIY

Not really DIY and I don't know if I'm being an idiot, but I need some help installing a washing machine. The problem is, I'm not sure whether it's a cold-fill or a hot/cold fill washer.

It has hot *and *cold water inlets, but the manual (page 44) essentially say you can use a cold water supply, but it needs to feed in to both water inlets (using a Y-piece connection.

A lot of new models are cold fill only and current energy ratings are determined using a cold fill at 15'C whatever the inlet configuration.
I've used a Y connector without problem for about 10 years though not in a hard water area. This may be cost effective if your boiler is elderly / less than efficient? - balanced against descaling boiler or washing machine or both?