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KC57
Insulating a whole house humidifer
KC57

About two months ago I replaced my air conditioner and a furnace with a whole house humidifier. The furnace is located in the attached garage. Last week I noticed water dripping from the valve that connects the hoses to the humidifier. When I called the installer he said likely the valve froze up, when we had 2 degree temps, and cracked so he would need to install a new one. I asked him how this could be prevented in the future and he said there wasn't a way to prevent it from freezing since it was located in the garage. When I suggested some type of insulation, he laughed it off and said that wouldn't help. I am not real happy with him right now as I feel if he is installing humidifiers on furnaces located in a garage then he should know how to prevent freezing of the equipment.

Any ideas how to keep a whole house humidifier located in the garage from freezing? Also thought about getting a heater.

ordjen
Re: Insulating a whole house humidifer
ordjen

How about heating tape like is used to protect exposed water pipes? I would think the whole water line would be vulnerable, unless it is one of the flexible type tubing. The actual water reservoir is getting heat from the furnace itself. I am surprised that the furnace is in the garage. This arrangement is usually only used in milder climates where both the furnace and water heater are out there, both of which contribute some latent heat to the garage itself. Is the garage insulated or at least drywalled? Is there a ceiling in the garage ( it usually is due to fire codes). These items tend to hold the garage more temperate when the temps fall outside.

KC57
Re: Insulating a whole house humidifer
KC57

I live in a condo/townhouse and there have been several things that are very odd about how it was built. Yes the garage has drywall with insulation and a ceiling. I checked the temp in the garage today and it was about 3 degrees higher than outside. I am going to look at insulating the garage door, window and door and see if that helps. I will check on the heating tape.

ordjen
Re: Insulating a whole house humidifer
ordjen

If everything is fairly well insulated, you might also consider tempering the garage heat with an electric heater with a very low setting thermostat that just keeps the garage slightly above freezing. There are in-line thermostats that go to such low settings.

KC57
Re: Insulating a whole house humidifer
KC57

Thanks for all the ideas.

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