On Tuesday, 14 May 2019 12:05:35 UTC+1, Tim Watts wrote:
On 11/05/2019 18:18, Fredxx wrote:

What size of hole?

Personally I would ditch the tumble drier for a condensing one. Free
heat and no messy hoses.

I tend to agree. You can get a condenser type for as little as £250 and
half the year, the waste heat is doing something useful.

£500 gets you a heat pump type so maths time to see what the payback
period would be on the extra £250.

http://wiki.diyfaq.org.uk/index.php/Clothes_dryer