I have a small supply of dehumidifier drain water is it suitable for the radiator?

That makes me feel very guilty about what I've put into mine over the last 43 years - pondwater, puddles, ditches, lemonade and even the local tap water!

I even know someone who weed into his radiator in an emergency. He should have let it cool down first.

Seriously, though, this would be distilled water and I should have thought suitable for anything, batteries and steam irons included.

Location: Herefordshire, with an "E", not a "T".

'He should have let it cool down first'...

The wee, or the rad Martin?! :-0

Location: North Herts

Dehumidifier water should be fine for the radiator, but don't make the mistake I made and use it in the windscreen washer of your modern. I suspect the water contains dust and mould spores pulled out of the air, which would appear to happily breed in the lukewarm washer bottle and coat the inside with black slime !

My Uncle once lived in southern Spain and used to sell dehumidifiers amongst other things. He visited one customer "out in the sticks" who proudly showed him how he drank the stuff (to save money on bottled water). In view of the above, rather him than me !

Location: New Forest