Mrs Cairn said one person had given them money to buy groceries, and another had offered to pay for their groceries while they were at the checkout.
She said another person had offered them a house-load of furniture, and the couple had offers of places to stay.
"It's so important that they be thanked," Mrs Cairn said.
The couple also wanted to thank the emergency services who were "just wonderful" and found them a place to stay on Friday night.
Kamo Club president Dennis Conaghan said the club put a message on facebook and in their newsletter on Saturday saying they would be a drop-off point for anything people wished to donate.
Mr Conaghan said they have been inundated with donations - from beds to a lounge suite, kitchen appliances, linen and more. Some of it - the linen in particular - was brand new.
A donation box had been placed on the bar and about six trailer-loads of items have been donated. Mr Conaghan said: "People have gone out of their way to be generous."
For anyone wanting to make a donation, items can be dropped off at the Kamo Club on Meldrum St.
Fire investigator Roy Brickell said the cause of the fire is still under investigation.