Marley UHMT1 Single-Pole Q-Mar...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$170.44
Marley UHMT1 Single-Pole Q-Mark Unit Heater Thermostat

Marley UHMT1 Single-Pole Q-Mark Unit Heater Thermostat

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Model: UHMT1

In Stock (leaves warehouse same day if ordered before 3pm ET)

$170.44
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Marley UHMT1 Single-Pole Q-Mark Unit Heater Thermostat

The Marley UHMT1 is a single-pole thermostat from the Q-Mark UHMT series, built specifically for use with electric unit heaters in commercial, industrial, and light-duty spaces. Its 1-pole configuration provides simple on/off switching of a single heating circuit, giving electricians and HVAC technicians a straightforward way to bring a unit heater online without added switching complexity. Designed to pair with Marley and Q-Mark electric unit heater equipment, the UHMT1 is a practical choice for new installations or as a direct replacement control on existing Q-Mark unit heater systems.

Key Features

  • Single-Pole Configuration: The UHMT1 uses a 1-pole design, switching a single heating circuit for clean, uncomplicated control of one electric unit heater.
  • Q-Mark UHMT Series: Part of the Marley Q-Mark UHMT thermostat line, a family of controls engineered specifically for electric unit heater applications.
  • Unit Heater Temperature Control: Regulates space temperature by cycling connected unit heater equipment, helping maintain consistent conditions in the served area.
  • Marley Brand: Sold under the Marley name, a brand associated with electric heating equipment and controls used across commercial and industrial facilities.
  • Straightforward Wiring: The single-pole switching arrangement simplifies the connection process for electricians installing or replacing unit heater controls.
  • Model UHMT1: Identified by the model designation UHMT1, making it easy to cross-reference against existing Q-Mark unit heater systems when specifying a replacement or new control.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Electric Unit Heater Installations
  • Commercial and Industrial Facilities
  • Temperature Control for Space Heating Equipment
  • New Construction and Retrofit Projects
  • Replacement Control for Existing Q-Mark Unit Heaters

Why Marley?

Choosing a Marley Q-Mark UHMT1 thermostat means pairing an electric unit heater with a control built specifically for that equipment category. The single-pole configuration keeps installation straightforward for licensed electricians and HVAC technicians, while the Q-Mark series name reflects Marley's focus on electric heating controls. Because the UHMT1 is designed to work within the established Q-Mark unit heater lineup, it is a practical choice when matching a replacement thermostat to existing equipment or specifying a control for a new installation. For full wiring diagrams, ratings, and installation instructions, always consult the manufacturer's documentation before installing or servicing this thermostat.

Manufacturer Resources

QMark Digital Catalog 2025

Product Specs

list_batch:
MAR-20260910
Product Group:
Heating
Product Type:
Thermostat
Department:
Electrical
Product Subgroup:
Thermostats
Configuration:
1-Pole
Series:
Q-Mark UHMT

Marley UHMT1 – Frequently Asked Questions

1) What is the difference between the Marley UHMT1 and UHMT2 unit heater thermostats?
Both are Q-Mark UHMT series unit heater thermostats, and the difference is the switching. The UHMT1 is single-pole, single-stage, so it switches one heating circuit on and off. The UHMT2 is the two-stage version, used where the heater is staged rather than controlled as a single circuit. Order by MPN: UHMT1 for single-pole, UHMT2 for two-stage.
2) Can I use the Marley UHMT1 thermostat as a replacement control on an existing Q-Mark unit heater?
Yes. The UHMT1 is built for Marley and Q-Mark electric unit heater equipment and is used both on new installs and as a direct replacement control on existing Q-Mark unit heater systems. If the heater you are replacing the control on is staged, the two-stage UHMT2 is the match instead.
3) Will a single-pole thermostat like the UHMT1 fully disconnect power to my electric unit heater?
No. Single-pole switching breaks one leg of the heating circuit only, so voltage can still be present at the heater even with the thermostat off. Treat it as a temperature control, not a disconnect, and lock out at the breaker before servicing.
4) Is the UHMT1 thermostat suitable for a commercial warehouse or shop heater, or is it a residential control?
It is aimed at commercial, industrial, and light-duty spaces served by electric unit heaters, cycling the connected heater to hold space temperature. Typical uses are warehouses, shops, and similar facility spaces on new construction or retrofit work.
5) Can one UHMT1 thermostat control two unit heaters?
The UHMT1 is designed around on/off switching of a single heating circuit for one electric unit heater. Running more than one heater from it would mean putting both on that circuit, which depends on the thermostat's load rating, so it is not the control to assume for a multi-heater zone. For staged control, the UHMT2 two-stage version is the other option in the series.
6) Where do I find the wiring diagram and electrical ratings for the Marley UHMT1?
Wiring diagrams, ratings, and installation instructions for the Q-Mark UHMT thermostats are published in the Q-Mark digital catalog and the manufacturer's installation sheet that ships with the control. Confirm the thermostat's voltage and amp rating against the heater's nameplate load before wiring it in.
How fast can I get the Marley UHMT1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Marley UHMT1 come with a warranty?
Absolutely. The Marley UHMT1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Marley UHMT1?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Marley UHMT1 from ZenSupply?
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