---
product_id: 271740238
title: "Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release"
brand: "petercor industries"
price: "532 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Petercor Industries"
url: https://www.desertcart.ro/products/271740238-water-heater-fvir-flammable-vapor-ignition-resistant-or-ftr-fixed
store_origin: RO
region: Romania
---

# Flammable Vapor Ignition Resistant Interchangeable with most models Factory Direct Quality Assurance Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release

**Brand:** petercor industries
**Price:** 532 Lei
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your water heater’s safety game — don’t get left in the cold!

## Quick Answers

- **What is this?** Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release by petercor industries
- **How much does it cost?** 532 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/271740238-water-heater-fvir-flammable-vapor-ignition-resistant-or-ftr-fixed)

## Best For

- petercor industries enthusiasts

## Why This Product

- Trusted petercor industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable metal construction ensures long-term reliability under high-heat conditions.
- • **Easy Troubleshooting:** Clear compatibility info and seller support to avoid downtime and cold showers.
- • **Safety First, Always:** Advanced FVIR technology prevents dangerous vapor ignition, keeping your home secure.
- • **Factory Direct Quality:** Sourced directly from Petercor Industries guaranteeing authentic, high-grade components.
- • **Universal Fit, Zero Hassle:** Designed to seamlessly replace parts on most water heater models for effortless installation.

## Overview

The Petercor Industries FVIR (Flammable Vapor Ignition Resistant) Thermal Release device is a compact, metal combustion shut-off part designed to fit most 50-gallon water heaters. Engineered for safety, it prevents ignition of flammable vapors by automatically shutting off the burner if combustion air vents are blocked. Factory direct quality and interchangeability make it a reliable, easy-to-install solution to keep your water heater running safely and efficiently.

## Description

PLEASE READ BEFORE PURCHASE. Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release for FVIR or FV or TRD system (Flammable Vapor Ignition Retardation System). Product is compatible with FVIR type water heaters. Installation instructions may be found online or through the manufacturer of the water heater. The image is an example of the interchangeable part that you will receive. This product may have a different "AP" number associated then the one in your water heater. Please message seller directly with any questions or concerns prior to purchasing.

Review: Congratulations, if your not an Heating & AC Tech, you just figured out the little part that stopped your appliance from working! so how does it work... If the vents pulling in the air for combustion get blocked, the combustion chamber heats up and the oil in the little glass cylinder expands and pops. It's filled with an oil that doesn't emit a vapor and wont combust when the little glass breaks closing the bottom vent and suffocating the flame thus turning off the water heater in my case... i don't know what other appliances have these... So now that you found the right part, how do you replace it? TURN OFF THE GAS FIRST ALWAYS!!! Unscrew the lines on the bottom of the controls, and there should be a few screws holding in the burner assembly where the little glass is, you need to pull those screws and the whole burner assembly off. Take a wet vac and try and get as much of the glass out so you don't get it in your hand while replacing it. This thing rotates up and off. once you have the housing off, grab the new one. You will need to press down with even pressure and a pretty good amount of it until you can rotate the tabs under where it catches... This can break during shipping and installation so BE CAREFUL. The first one that i got had a little oil on the inside of the bag and there is a real fine point where the glass cylinder meets the bottom metal pc where it sticks through the metal pc... my first one was slightly chipped at the top but didn't all the way pop... desertcart took care of it and processed a replacement fast and easy, just feel bad for the seller as it should have been boxed and not shipped in a soft package... it's real fragile so if you see any oil on the inside of the bubble wrap little package this thing comes in, stop there and return it... as soon as it heats up it will pop and you will be back to square 1 only have to spend the $ on another... once you get this thing in place, you can put the burner system back into place, hook up the lines and turn the gas back on... always helps to make sure all the connections are properly tightened and there aren't any gas leaks.. if your heater doesn't initially start, turn it to off for about 5 min and try the mfg outlined procedure again... or call an AC tech... i'm just a consumer that had to figure out what this thing is, how it works and how to get my hot water back so the fam would stop complaining about cold showers... lol. Have a great day!!!
Review: Looked everywhere for a replacement combustion shut off device or auto called thermal release device. For my Rheem hot water heater. Put new part in and water heater started right up

## Features

- Compatible with most water heaters.
- Factory Direct. d for Quality Assurance.
- Part is Interchangeable (Will fit most models).
- Please contact Seller with any questions/concerns prior to ordering.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01A932ISE |
| Brand | Petercor Industries |
| Capacity | 50 Gallons |
| Color | Yellow/Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (425) |
| Date First Available | 5 August 2016 |
| Item Weight | 18 g |
| Material | Metal |
| Model Number | TRD |
| Product Dimensions | 4.76 x 4.76 x 3.81 cm; 18 g |
| Special Features | Combustion Shut Off |

## Product Details

- **Brand:** Petercor Industries
- **Capacity:** 50 Gallons
- **Power source:** Corded Electric
- **Product dimensions:** 48W x 38H millimeters
- **Special features:** Combustion Shut Off

## Images

![Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release - Image 1](https://m.media-amazon.com/images/I/61PHqCt9oqL.jpg)
![Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release - Image 2](https://m.media-amazon.com/images/I/71XGSbg9teL.jpg)
![Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release - Image 3](https://m.media-amazon.com/images/I/91Y-BcJYWBL.jpg)
![Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release - Image 4](https://m.media-amazon.com/images/I/91gv4qmb5cL.jpg)
![Water Heater FVIR (Flammable Vapor Ignition Resistant) or FTR Fixed Thermal Release - Image 5](https://m.media-amazon.com/images/I/91nCySii5eL.jpg)

## Questions & Answers

**Q: Does this comes with the glass?**
A: Yes it does the little glass in the middle is what break and causes the water heater not to work properly

**Q: my water heater is automatic start. I got wet from flood and now wont start. A plumber told me I need a over heat fuse. Anyone know what that is?**
A: This is a type of overheat fuse, usually found in GE or Hotpoint water heaters

**Q: Will this work for a Richmond water heaters?**
A: We have a Richmond water heater and it works for ours.

**Q: What temperature are these rated at?**
A: I could not find a published temperature rating on this device.  This device was mandated on all 30,40,50 gallon water heaters in 2003 to prevent what's called a flashback vapor ignition fire. the little knob that pushes on the glass is connected to a flame arrestor plate. if the combustion chamber gets too hot like when the airflow gets cut off... it will heat the oil and pop the cylinder, closing off the vent and suffocating the flame, the gas valve also has a sensor that cuts it off... if this tripped, it's not as a matter of old age and may not necessarily be related to the temperature your running the water heater at... the glass looks weak, but it's not... the oil inside of the glass has to heat up expand and pop it... keep in mind that these are good for running at pretty good level of heat however, the hotter you run the unit, the faster it will age the combustion chamber and components and the more risk you take of replacing it again in a year or two... but it's likely that anyone that has to replace one of these has a ventilation issue... or maybe some chemical vapor like gasoline vapors which are heavier than air and nearby causing vapors to leak into the air intake.. These shouldn't just randomly pop so be sure that when you replace it, be meticulous that the intake and exhaust are free of obstructions...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***. on 26 July 2019*

Congratulations, if your not an Heating & AC Tech, you just figured out the little part that stopped your appliance from working! so how does it work... If the vents pulling in the air for combustion get blocked, the combustion chamber heats up and the oil in the little glass cylinder expands and pops. It's filled with an oil that doesn't emit a vapor and wont combust when the little glass breaks closing the bottom vent and suffocating the flame thus turning off the water heater in my case... i don't know what other appliances have these... So now that you found the right part, how do you replace it? TURN OFF THE GAS FIRST ALWAYS!!! Unscrew the lines on the bottom of the controls, and there should be a few screws holding in the burner assembly where the little glass is, you need to pull those screws and the whole burner assembly off. Take a wet vac and try and get as much of the glass out so you don't get it in your hand while replacing it. This thing rotates up and off. once you have the housing off, grab the new one. You will need to press down with even pressure and a pretty good amount of it until you can rotate the tabs under where it catches... This can break during shipping and installation so BE CAREFUL. The first one that i got had a little oil on the inside of the bag and there is a real fine point where the glass cylinder meets the bottom metal pc where it sticks through the metal pc... my first one was slightly chipped at the top but didn't all the way pop... Amazon took care of it and processed a replacement fast and easy, just feel bad for the seller as it should have been boxed and not shipped in a soft package... it's real fragile so if you see any oil on the inside of the bubble wrap little package this thing comes in, stop there and return it... as soon as it heats up it will pop and you will be back to square 1 only have to spend the $ on another... once you get this thing in place, you can put the burner system back into place, hook up the lines and turn the gas back on... always helps to make sure all the connections are properly tightened and there aren't any gas leaks.. if your heater doesn't initially start, turn it to off for about 5 min and try the mfg outlined procedure again... or call an AC tech... i'm just a consumer that had to figure out what this thing is, how it works and how to get my hot water back so the fam would stop complaining about cold showers... lol. Have a great day!!!

### ⭐⭐⭐⭐⭐ Review
*by R***R on 28 December 2022*

Looked everywhere for a replacement combustion shut off device or auto called thermal release device. For my Rheem hot water heater. Put new part in and water heater started right up

### ⭐⭐⭐⭐⭐ Review
*by T***N on 12 May 2025*

This had the OEM part number stamped, just like the original. My heater is 12 years old, always do I my own home repairs and installs. Never dealt with this part going bad. I had alot of ash in the burner section, took apart the flue and found dead stink bugs and maple saplings. Cleaned everything, blew burner out with air, wire brushed the tank bottom vacuumed inside, used a new igniter assembly with the red gasket. Ordered part on Sunday for an overnight delivery. They where 2 hours late, got nervous because nobody stocks this part near me. A gal in her car delivered it, thanked her, installed part and burner, got hot water again.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-06*