Thermostat - One Stage Heat Zoom

Thermostat - One Stage Heat


Brand: Tekmar

527 has been discontinued.
Direct Replacement:
Brand: Tekmar



Application: Heat Only
1 Heat
Programmability: Non-Programmable
User Interface: Push Button
Mount: Horizontal
Options: Works with Sensor
Large Display
Power Method: Hardwired
Temperature Range (F): 36-122
Color: White
Height: 2-7/8"
Width: 2-7/8"
Depth (Inches): 13/16"
Weight (lbs): .8 lbs
Power Supply: Provided by tN2 Zone Manager or tN2 Wiring Center
Ambient Conditions: Indoor use only. 36 to 122°F RH max 80% up to 88°F - decreasing linearly to 50% RH at 104°F
Control: Microprocessor PID control
Enclosure Type: J

Description for Tekmar 527

Please Note: This thermostat is a communicating thermostat that requires a tekmarNet wiring center or house control to connect with. This is not a stand alone thermostat.


The Thermostat 527 operates a single hydronic heating system zone.


  • tekmarNet® communications compatibility
  • Simple 2-wire connectivity
  • Schedule member
  • Optimum start
  • Scenes
  • Outdoor temperature display
  • Freeze protection
  • Cooling groups
  • Exercising
  • Zone synchronization
  • Large LCD with backlight
  • CSA C US approved for use in USA and Canada
  • Energy savings
  • Reduced temperature swings
  • Suitable for 2-wire retrofits
  • Compatible with tekmarNet Timers, User Switches and Gateway for additional control options
  • Interlock to prevent simultaneous heating & cooling

Thermostat - One Stage Heat


by PowerReviews
TekmarThermostat - One Stage Heat

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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By Dadbino

from Montana

Verified Buyer

Comments about Thermostat - One Stage Heat:

Great thermostat, looks nice and displays outside temp.

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Q&A: Ask the Questions, share answers

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2 Questions | 4 Answers
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  • Thermostat - One Stage Heat


    Can this be used to replace tekmar RTU 055 ?
    Thank you
    Gerhard Jahn
    Asked on 12/8/2014 by Gerhard from Anacortes WA

    1 answer

  • Thermostat - One Stage Heat


    Does this product require a battery and if so, is the battery replaceable?

    Thank you....Jr
    Asked on 11/14/2013 by Jr. from Moscow, Pa

    3 answers



      The tekmar 528 does not require a battery. But note that it is not a
      conventional thermostat. It has to be used in combination with other
      tekmar equipment to function.

      Answered on 11/14/2013 by Anonymous


      When I purchased these thermostats, I thought I could just connect to my 2 wire stat wire to it. Then found out that there is no battery. It must hard wired it. I have no power in the wires. So, it would not work unless I bought the Tekmar house control or ran wires in the walls........Also, these stat can work alone but are really designed to be used with a house control and the house control can also power it. The house control are about $500 or more BUT they work, they save more money than the stats alone. I highly recommend it.
      Prior to using these Tekmar stats, my in-slab radiant heat propane bill for the year climbed up to $5400! Then, with the Tekmar stats alone, $4000-4500. After the house control purchase, $2500.
      Spend the $500, you'll make it back within a few months.
      Watch this guy's Tekmar videos:
      Hope this helps, Peter

      Answered on 11/14/2013 by Anonymous


      No Battery required

      Answered on 11/14/2013 by Anonymous
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