please could anybody tell me where i could purchase a heat pad for my whelping box.

I bought mine from Argos.  Two heat settings

tried argos do not have now but thanks anyway.
can anyone else help?

Just had a look in the Argos book and they have two,  cat no.450/4636  and  450/3943

just found them was looking on wrong page.thank you so much Sharon.

No problem, glad I could help :)

Snuggers.co.uk supply whelping boxes and heat pads/igloo type kennels/radiators of all sizes and strengths that are suitable for dogs that chew and disturb bedding because they are made of glassfibre resin type material- I do not have any affiliation with the company I just know because i have just purchased one from them