Customer had a water heater that had leaked and had water leaking out under the carpet and walls. Recommended Provision to come out and remediate. Customer scheduled them to come out in the morning. Replaced 40 gas with a 50 gas. Installed a new thermals, drip pan, and shutoff. Tested all work to ensure proper function and no leaks. Informed customer that existing vent goes to a chimney. Recommended having an hvac company inspect the venting.