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 RTH2300B1038 Programmable Thermostat is a programmable. Its listing doesn't spell out which heating and cooling systems it supports, so run the maker's compatibility checker before you buy.
Check your wall for a C terminal: the listing doesn't say whether it needs a C wire. The C wire guide covers adapters.
The maker states heat pump support ("to install yourself and works with many heating/cooling systems, plus heat pumps without a"), so it can drive an O/B reversing valve and auxiliary heat. What a heat pump needs from a thermostat.
Schedule: 5-2 day programming. A schedule only saves energy if it's set; spend five minutes on it after installing.
Power, per the listing: Battery Powered. Battery models often fit old two-wire circuits with no C wire.
Tick your terminals in the wiring checker to see whether its maker's statements cover your system.
Also on the listing: dimensions of 1 in (D) x 4.75 in (W) x 3.5 in (H), a weight of 4 ounces and a led-backlit.
Warranty, per the listing: 1 year limited warranty.
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 | RTH2300B1038 | Retailer |
|---|---|---|
| Model name | RTH2300B1038 | Retailer |
| Dimensions (seller) | 1"D x 4.75"W x 3.5"H | Retailer |
| Works with | Hand Control | Retailer |
| Features (seller) | Programmable | Retailer |
| Connectivity | Wired | Retailer |
| Power | Battery Powered | Retailer |
| Display | LED-backlit | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Batteries | 2 AA batteries required. | Retailer |
| Material | Plastic | Retailer |
| Warranty | 1 year limited warranty. | Retailer |
| Product weight | 4 ounces | Retailer |
| Heat pump support | to install yourself and works with many heating/cooling systems, plus heat pumps without auxiliary heat | Retailer |
| Auxiliary heat | backup heat | Retailer |
| Schedule | 5-2 day programming | Retailer |
Strong points and weak points
Strong points
- 5-2 day programming
- Power: Battery Powered
- No Wi-Fi or account needed
- Heat pump support stated
Weak points
- No remote control
- Systems not stated
- 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 RTH2300B1038 Programmable Thermostat need a C wire?
What systems does the Honeywell Home RTH2300B1038 Programmable Thermostat work with?
Other programmable and basic thermostats with similar wiring
- Honeywell Home RTH2510B1018 Programmable Thermostat
- White-Rodgers 1F83C-11PR Programmable Thermostat
- LUX TX9600TS Programmable Thermostat
- Honeywell Home TH2210U4005 Programmable Thermostat
All programmable and basic thermostats in one grid · Every Honeywell Home control listed
Our take
Suited to 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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