Will it work with your system?
Works well with
- A weekly schedule without an app
- Older wiring without a C wire
Check first if you have
- Phone or voice control
- Line-voltage baseboard heat
What it controls
The Honeywell Home RTH8500D1013/E1 Programmable Thermostat is a programmable. Systems, per the maker: works with conventional and heat pump systems up to 2H/2C, it's one thermostat for nearly every application.
On power, the listing doesn't say whether it needs a C wire. What a C wire does.
The maker states heat pump support, so it can drive an O/B reversing valve. What a heat pump needs from a thermostat.
Stages, per the maker: 2h/2c. A second-stage wire (W2 or Y2) at your old thermostat needs matching support here. Single- and two-stage systems.
Schedule: Programmable. Program sleep and away setbacks once and it runs them every week.
Power, per the listing: Battery Powered. Battery models often fit old two-wire circuits with no C wire.
Not sure of your wiring? The wiring checker reads your system from the terminal letters and checks it against this model's statements.
Also on the listing: a weight of 1 g and a digital.
Warranty, per the listing: 1 year.
Compatibility and specs
These come from the maker's listing for this exact model; the source of each is marked. Anything the maker leaves out is marked not stated.
| Model number | RTH8500D1013/E1 | Retailer |
|---|---|---|
| Model name | RTH8500D | Retailer |
| Works with | Touchpad Control | Retailer |
| Features (seller) | Programmable | Retailer |
| Power | Battery Powered | Retailer |
| Voltage | 32 V | Retailer |
| Display | Digital | Retailer |
| Batteries | 1 CR2 batteries required. | Retailer |
| Product weight | 1 g | Retailer |
| Warranty | 1 year. | Retailer |
| Material | Plastic | Retailer |
| Works with systems | works with conventional and heat pump systems up to 2H/2C, it's one thermostat for nearly every application | Retailer |
| Heat / cool stages | 2h/2c | Retailer |
| Schedule | Programmable | Retailer |
Strong points and weak points
Strong points
- Programmable
- Power: Battery Powered
- No Wi-Fi or account needed
- Heat pump support stated
Weak points
- No remote control
- Batteries to replace
Wiring and install notes
- Compatibility statements are the maker's own. Confirm with the maker's compatibility checker, turn the power off before wiring, and leave line-voltage and furnace work to a licensed electrician or HVAC technician.
Thermostats to compare it with
FAQ
Does the Honeywell Home RTH8500D1013/E1 Programmable Thermostat need a C wire?
What systems does the Honeywell Home RTH8500D1013/E1 Programmable Thermostat work with?
Other programmable and basic thermostats with similar wiring
- Honeywell Home CT33A1009/N Millivolt Thermostat
- Honeywell Home CT30A1005 Non-Programmable Thermostat
- Heagstat H701 Non-Programmable Thermostat
- Riseem S3001-White Non-Programmable Thermostat
All programmable and basic thermostats in one grid · Every Honeywell Home control listed
Our take
Shortlist it for A weekly schedule without an app.
Where to get it
The link goes to this exact model's listing. Check that the box includes the trim plate or C-wire adapter you need, and confirm your wiring with the maker's compatibility checker before you order.
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