Detroit Radiant Two-Stage Toggle Controller with 4-Hour Timer, No Transformer – TH-T2-4H-NT

$292.50

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Detroit Radiant TH-T2-4H-NT Toggle Timer Controller: a four hour timer for one DSR or DSRF heater

The Detroit Radiant TH-T2-4H-NT Toggle Timer Controller is a toggle switch control with a four hour timer for Detroit Radiant DSR and DSRF gas tube heaters. It works with two stage heaters, which have low and high heat settings. The switch lets you choose the heat setting, and the timer limits how long the heater runs. This version comes without a transformer, the part that supplies the voltage a heater needs. Detroit Radiant builds these controls for its own heaters, so the wiring and voltages match.

You need one controller per heater. Pair it with a DSR or DSRF that makes its own 24 volts. It does not fit the DSC, which needs an external transformer. Need the version with a transformer? See the Detroit Radiant TH-T2-4H Toggle Timer Controller. The Detroit Radiant TH-T2-4H-NT Toggle Timer Controller ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

Weight 1.8 kg

Specifications

SKU: TH-T2-4H-NT

Specification Value
Part Number TH-T2-4H-NT
Type Controller
Description Low voltage infrared heater controller with toggle switch and 4-hour timer. Single zone, two stage. No-transformer version, so 1 heater to 1 controller. Not for use with heaters that require a transformer.
Works With DSR Series tube heaters, DSRF Series vented tube heaters
Notes 1 heater per controller; not for heaters that need a transformer (excludes DSC, which is a 24 V unit needing an external transformer)
Stage Two stage
Shipping Weight 4 lbs
Source Detroit Radiant 2026–2027 Pricing Catalog, page 58

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