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Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

Name: Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040
Brand: Sunstar
SKU: 42837040
Price: 58 USD
Availability: InStock

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Sunstar 42837040 Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. - generic product illustration

UPC:
Condition:: New
Width:: 12.00 (in)
Height:: 12.00 (in)
Depth:: 12.00 (in)

Questions about Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040?

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Overview

Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

Product details

Description

Sunstar Air Pressure Switch | Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

The Sunstar 42837040 is a genuine Sunstar air pressure switch for SIR Tough Guy Vacuum U-Tube Heaters (25,000-45,000 BTU). The air (pressure) switch proves that the inducer or blower is moving air before the ignition sequence starts. Set points are model specific; always use the correct set point.

Key Features

Genuine Sunstar part number 42837040
Fits SIR Tough Guy Vacuum U-Tube Heaters
Genuine Sunstar factory part
Direct replacement for the series listed

Fits These Sunstar Heaters

Sunstar SIR Tough Guy Vacuum U-Tube Heaters (25,000-45,000 BTU)

Specifications

Brand: Sunstar
Part Number: 42837040
Type: Air Pressure Switch
Fits: SIR Tough Guy Vacuum U-Tube Heaters (25,000-45,000 BTU)
Warranty: 1 Year Parts (Sunstar part warranty)

Before You Order

Match the part number to your heater manual or rating plate
Shut off gas and power before servicing
Confirm the part number against your heater model and rating plate, or the installation and operation manual.

Frequently Asked Questions

How do I know this part fits?

Match the part number to the parts list in your heater installation and operation manual, or to the model and input on the rating plate.

Is this a genuine Sunstar part?

Yes. It is a factory Sunstar part number from the current Sunstar parts price list.

Documents

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

We’ll auto-detect for U.S. visitors.

Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Sunstar

Width:

12.00 (in)

Height:

12.00 (in)

Depth:

12.00 (in)

Weight:

2.00 LBS

Product Type:

Heater Replacement Part

Accessory Type:

Air Pressure Switch

Compatible Series:

Sunstar SIR Tough Guy Vacuum U-Tube Heaters (25,000-45,000 BTU)

Manufacturer Part Number:

42837040

Prop 65 Warning:

Yes

Safety Information:

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Part Type:

Air Pressure Switch

Compatible Brand:

Sunstar

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.

2023 Energy Standards

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Documents & warranty

Warranty

1 Year Parts | Covered by the Part Manufacturer Warranty

Frequently asked questions

What warranty comes with the 42837040?

1 Year Parts | Covered by the Part Manufacturer Warranty

Who makes the 42837040?

The 42837040 is made by Sunstar.

Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

Sunstar

Questions about Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040?

At a glance

Sunstar Air Switch Replacement Kit NS-20307 Set at 0.11" W.C. for SIR 25-45 Tube Heaters | 42837040

Description