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Find Your Model Number

Select Your Product

Every Honeywell thermostat has a model number as its unique identifier. Once you know your model number, you can easily find answers to your questions, find replacement or service parts, or discuss the product with your service professional.

The model number is printed on every product Honeywell makes. Select a product category below for instructions on where to locate it on your product. For all other products, contact your installing contractor or owner's manual.

Click Here to find your owner's manual

Thermostats Air Cleaners Replacement Filters Humidification Dehumidification Ventilation System UV Air Treatment Door Chime

Your model number will begin with the letters, T, TH, RTH, C, or CT and is on the back of the thermostat.

Your model number for the air cleaner will begin with the letter F and it will be on the back of the filter door.

The model number for the replacement filter is on the side of the filter.

If you have a traditional whole-house humidifier, your model number will begin with the letters HE or HM. The model number will be on a sticker on the edge. If you have a whole-house steam humidifier, your model number will be on a sticker by the handle hinge.

Your model number will begin with the letters DH and is on a sticker on the side of the unit.

Your model number will begin with the letters ER or HR and will be on a sticker on the duct side of the unit.

Your model number will begin with the letters RUV, or UV. The model number for the product is printed on a sticker on the duct side of the base. The model number for the product's replacement bulb is at the top of the bulb by the handle.