Manually Adjustable Humidistat/Thermostat Control for EGV/ERV Power Vents
- Adjustable humidistat/thermostat
- Suitable for all Master Flow brand power attic fans
- Pre-wired for installation
- See More Details
Frequently Bought Together
Product Overview
Nothing protects quite like a roof.
Nothing protects quite like a roof. That's why millions of Americans live, work, and play under quality products from North America's largest roofing manufacturer - GAF.
How much Ventilation do I need?
Include 1 sq. ft. of attic ventilation, evenly split between intake and exhaust, for every 300 sq. ft. of attic floor space.
What type of Ventilation do I need?
Review the ventilation options below to determine the best fit for your home application.
High efficiency Electric, Solar or Hybrid
Quickly removes large volumes of heat and moisture from your attic.
No electricity required
Allows excess heat and moisture to escape your attic without the need for electric hook-up.
Wind-powered, smooth, and quiet operation
Utilizes the wind to pull heat and moisture from attic; acts as a static exhaust vent when wind is still.
The most overlooked and critical part of attic ventilation
Allows cooler, fresh air to enter the attic at/near the soffits driving heat and moisture out higher exhaust vents.
5 Warning Signs
Here are some poor attic ventilation warning signs that you may recognize:
1. Increased energy costs
Excess attic heat can cause your cooling system to work harder, raising your energy costs.
2. Curling/cracking shingles
Inadequate ventilation can cause your roof shingles to curl and crack.
3. Roof decking moisture
Excess attic moisture can drip into attic insulation reducing effectiveness, even damaging ceilings below.
4. Attic mold/mildew
Excessive moisture can cause dangerous mold and mildew causing additional concerns.
5. Winter ice dams
Ice dams can cause expensive leaks and damage in attics, as well as living spaces.
- Helps reduce the likelihood of damaging moisture or heat accumulation in your attic
- Designed for use with GAF Master Flow EGV/ ERV series power vents
- Fully adjustable to accommodate varying climates
- Durable galvanized steel construction
- Pre-wired to facilitate installation
Info & Guides
Product Overview
- Adjustable humidistat/thermostat
- Suitable for all Master Flow brand power attic fans
- Pre-wired for installation
Key Features
Nothing protects quite like a roof.
Nothing protects quite like a roof. That's why millions of Americans live, work, and play under quality products from North America's largest roofing manufacturer - GAF.
How much Ventilation do I need?
Include 1 sq. ft. of attic ventilation, evenly split between intake and exhaust, for every 300 sq. ft. of attic floor space.
What type of Ventilation do I need?
Review the ventilation options below to determine the best fit for your home application.
High efficiency Electric, Solar or Hybrid
Quickly removes large volumes of heat and moisture from your attic.
No electricity required
Allows excess heat and moisture to escape your attic without the need for electric hook-up.
Wind-powered, smooth, and quiet operation
Utilizes the wind to pull heat and moisture from attic; acts as a static exhaust vent when wind is still.
The most overlooked and critical part of attic ventilation
Allows cooler, fresh air to enter the attic at/near the soffits driving heat and moisture out higher exhaust vents.
5 Warning Signs
Here are some poor attic ventilation warning signs that you may recognize:
1. Increased energy costs
Excess attic heat can cause your cooling system to work harder, raising your energy costs.
2. Curling/cracking shingles
Inadequate ventilation can cause your roof shingles to curl and crack.
3. Roof decking moisture
Excess attic moisture can drip into attic insulation reducing effectiveness, even damaging ceilings below.
4. Attic mold/mildew
Excessive moisture can cause dangerous mold and mildew causing additional concerns.
5. Winter ice dams
Ice dams can cause expensive leaks and damage in attics, as well as living spaces.
Specifications
Dimensions
Details
Warranty / Certifications
Questions & Answers
Will this work with Master Flow 1500 CFM Power Roof Mount Attic Fan Model# ERV6SMWW
Asked by gurubaba June 17, 2017I don’t know who answer the last question but this will work with any power unit it’s only controlling the humidity and the temperature doesn’t matter what it’s controlling
Will this work with other models?
Asked by t123 August 14, 2015Of course, it only has 2 wires total based on hot wire...
Will this work with egv5 masterflow fan
Asked by Ant August 7, 2019Yes, Works with all PG/PR & newer EG model power vents. I have two EG models working with the HT-1.
Will this work with a crawl space vent fan?
Asked by JR January 11, 2018This turns off and on the 110V current to the fan based upon either humidity or temperature. Should work with any fan that requires 110V AC power.
Will this humidistat/thermostat combo work with the EGV6 masterflow power attic fan?
Asked by Joshe January 8, 2017Yes, It will work with any unit, the fan does not care what’s controlling it
Amperage
Asked by Chris January 19, 2016This device is rated for 6.0 Amps. Please call MasterFlow Technical Service at 800-211-9612 , M-F 8A-5P ET, for any additional information.
I have two humidistats in my attic; one is digital (not controlling anything), the other is the M...
Asked by IYAAYAS February 4, 2020The humidity levels inside the attic will differ than the outdoor conditions. The humidistat will come on when the level reaches the setting on the control, The unit will continue to operate until the relative humidity decreases approximately 5 or 6%. Please call Technical Services at 800-211-9612 for further inquiries.
Can this humidista/thermostat control two power vents at the same time?
Asked by rh71 March 18, 2016It is recommended that each Power Vent has its own control. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
Would this thermostat be suitable for use in a sauna?
Asked by Haute December 24, 2020No, this is a replacement for all Master Flow brand power attic fans. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
What are the manufacturer recommended settings for temperature and humidity for the New Jersey area?
Asked by Chris November 28, 2016We recommend 105°f and 70 % . If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
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