Whether you’re replacing a single duct high limit switch or sourcing hundreds of controls for a commercial HVAC project, choosing the right distributor can save time, reduce costs, and ensure you receive the correct product for your application.
Firestat duct high limit switches are available through a network of trusted HVAC and industrial control distributors throughout North America. Customers purchasing small quantities often benefit from distributor inventory and faster shipping, while OEMs and contractors with larger projects may find it advantageous to purchase directly from Firestat.
Where Can You Buy Firestat Duct High Limit Switches?
Firestat products are available through several established distributors serving the HVAC, building automation, and industrial control markets.
Current distributors include:
These distributors stock a variety of Firestat products and can often provide local inventory, technical assistance, and faster delivery for replacement parts or small orders.
Should You Buy Direct or Through a Distributor?
The best purchasing option depends on your project.
Buy Through a Distributor If You Need:
- One to 100 switches
- Fast local delivery
- Replacement parts
- Emergency service
- Existing distributor accounts
- Local technical support
Many HVAC contractors already have purchasing relationships with distributors, making this the quickest solution for maintenance and repair projects.
Buy Direct from Firestat If You Need:
- OEM quantities
- Custom temperature settings
- Private labeling
- Custom probe lengths
- Engineering support
- Application assistance
- Volume pricing
Since Firestat products are manufactured by Senasys in Wisconsin, purchasing directly allows you to work with the engineers who design and build the product.
Choosing the Right Duct High Limit Switch
Before ordering, determine the following:
Temperature Range
Firestat adjustable models are field adjustable from 100°F to 250°F, while fixed-temperature models are factory calibrated for applications requiring a predetermined trip point.
Probe Length
The sensing element should extend near the center of the duct for the most accurate temperature measurement.
Common lengths include:
- 5″
- 7.5″
- 11″
Choosing the correct probe length improves response time and helps prevent nuisance trips.
Electrical Requirements
Firestat duct limit controls are suitable for:
- Low-voltage control circuits
- Line-voltage applications
- Building automation systems
- Electric duct heaters
- Commercial HVAC equipment
Contact us today to begin ordering!
Common Applications
Firestat duct high limit switches are commonly installed in:
- Apartment complexes
- Multi-family housing
- Commercial office buildings
- Schools
- Hospitals
- Hotels
- Industrial facilities
- Electric duct heaters
- Air handling units
- Rooftop HVAC equipment
These applications rely on duct high limit controls to shut down HVAC equipment when duct temperatures exceed safe operating limits, helping protect equipment and occupants.
Why Contractors Choose Firestat
Firestat has earned the trust of HVAC contractors, facility managers, and OEM manufacturers by providing dependable temperature safety controls designed for demanding commercial environments.
Benefits include:
- Manufactured in the USA
- UL/cUL recognized
- Manual reset safety operation
- Adjustable and fixed-temperature models
- Multiple sensing element lengths
- Fast response helix bi-metal sensing element
- OEM customization available
- Technical support from the manufacturer
Frequently Asked Questions
Can I purchase directly from Firestat?
Yes. Firestat supports direct purchases for OEMs, contractors, and customers requiring engineering assistance or custom products.
Which distributor should I choose?
If you need a replacement quickly, purchasing through a local HVAC distributor is often the fastest option. For larger projects or custom requirements, purchasing directly from Firestat is typically the best choice.
Do distributors stock both adjustable and fixed models?
Many distributors stock the most common adjustable and fixed-temperature models. Availability varies by location.
Can I order custom temperature settings?
Yes. Firestat offers custom configurations for OEM and specialty applications.
Visit our FAQ page for more common questions and answers.
Need Help Finding the Right Distributor?
Whether you’re looking for a local distributor, need assistance selecting the correct duct high limit switch, or require a custom solution for an OEM application, the Firestat team is here to help.
Contact us today, and we’ll recommend the best purchasing option based on your project size, application, and delivery requirements.
