Is it OK for the painters and sheet rock guys to run the furnace?
No. See for yourself here. There are construction heaters built specifically for that purpose. The fact that painters and sheet rocks guys rarely use one is no excuse. Are they properly equipped tradesmen or are they hackers? Your $5,000 interior paint job will cost you $6,500 after you replace a motor, circuit board and who knows what else. Often times customers don’t know it was the sheet rock dust and paint that caused the failure. It can take years for the contamination to slowly eat away at furnace components.
