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White rectangular manual thermostat, heat only, 3.12 by 3.12 inches

Thermostat .6

SKU CH-KWKF-2CVB7

A heat-only manual thermostat with a bimetal sensor and snap-action switch for simple, level-free installation

  • Product typeHeat Only
  • Product colorWhite
  • Key featuresHeat Only
  • Heat-only control for simple home heating
  • Snap-action magnetic switch ensures reliable operation
  • Bimetal sensor provides straightforward temperature regulation
  • Includes mounting hardware for quick DIY installation
  • No leveling required speeds up setup

Manual Heat-Only Thermostat

The Honeywell Home CT30A1005 is a non-programmable thermostat designed for low-voltage heating systems. It uses a bimetal temperature sensor and a snap-action magnetic switch to control heat. The almond-coloured unit includes a decorative back plate and mounting hardware for DIY installation. No levelling is required during setup.

Suits Simple Heating Systems

This thermostat fits homes with single-stage heating that need a basic manual control. It is not compatible with electric baseboard heat, heat pump systems or multi-stage heating and cooling configurations. Buyers who want programmable schedules, cooling control or auto changeover should look at other models. The display is blank until the dial is adjusted.

Fits Standard Wall Boxes

The unit measures 3.12 by 3.12 inches and mounts directly to a standard wall box using the supplied hardware. Its mechanical operation needs no batteries or external power beyond the heating circuit. The mercury-free design simplifies disposal. The package includes a quick-install guide to get the thermostat running in a short time.

How it compares

Measured against everything we stock in Thermostats & Thermostat Accessories, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 77% of the 286 comparable items (median $78.49).

Specifications

Product
Brand nameHoneywell Home
Product typeHeat Only
Product colorWhite

Questions about this item

What heating system is required for the CT30A1005 thermostat to operate?

It works with low‑voltage heating systems only; electric baseboard heat, heat pumps and multi‑stage systems are not compatible.

Can the CT30A1005 replace a CT31A or CT33A model on the same wiring?

No — the CT31A supports heating and cooling while the CT33A is for millivolt systems, so neither shares the same system type as this heat‑only unit.

How can I verify the thermostat is controlling heat correctly after installation?

Turn the dial to a temperature above the current room reading; the heating system should activate and the snap‑action switch will click when the set point is reached.

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