Gas and Oil Home Heating Furnaces - Modulating Thermostat

1. What is reason a modulating thermostat will not work with zone heating?

2. Is a Honeywell VisionPRO 8000 Touchscreen Programmable a modulating thermostat?

Thanks,
Jerry

I don't know the Rheem/Ruud that well, but I've read that you need termal for the t-stat to tell the furnace to mod. Zone boards don't have it, and you will have to stage the system instead of Mod.

The VisionPro is not a Mod t-stat, it's 2 stage heating.

I don't know the Rheem/Ruud that well, but I've read that you need termal for the t-stat to tell the furnace to mod. Zone boards don't have it, and you will have to stage the system instead of Mod.

The VisionPro is not a Mod t-stat, it's 2 stage heating.

Thanks for the return. I realize your last sentence probably answers this, but I want to ask it a different way. If you did not have zoning, and you used a VisionPro thermostat on a modulating furnace, your statement tells me the furnace would only operate in a two-stage mode and would not modulate. Is that true?

Right, the VisionPro will only do two stage of heat, You need a matching Mod stat for a mod furnace to get the fulll effect of the modulating system..

Are you looking at the Mod? Zone?

Right, the VisionPro will only do two stage of heat, You need a matching Mod stat for a mod furnace to get the fulll effect of the modulating system..

Are you looking at the Mod? Zone?

Yes, both. However, you had answered most of my questions on modulatiing and zone heating in an earlier post.

If you want a TRUE mod set up, then go with the Rheem Mod with a matching Mod t-stat.. No zone at all.


If you want zone, then go with a two stage system with a matching Honeywell Controls.. Don't waste the money on the Mod furnace.