After i bought a thermopile from you, i replaced them with new thermopile. the light won't stay on. what might be issue then?

Check the reading of the thermopile with a multimeter. You should be getting 500mv or higher with the flame on. In my case, both thermopiles I purchased from this seller were defective and would not get above 350mv. It was enough to keep the pilot on but not to energize the valve.

Will it work in a Appalachian gas fireplace model conquest P?

I'm an HVAC TECH and deal with this ALOT in Northeastern Pennsylvania. GRANTED,they are on mostly older Steam Boilers I was Shocked to open a fryer at my local/FAVORITE Chinese Restaurant! WELL,actually it was the price Difference that shocked me! Here's what I found out after some buying/installing/etc. 750ml is 750ml no matter how you look at it it's going to open and control your gas valve. The only difference you have to look out for is this on the frying ones they do not have a heat-sensitive cover so you have to watch out for that I have found ones that do have the metal covering that you want if it's going to be near flames or in the high heat scenario but remember sheet goes up so if you have a fireplace or something and you're tucking that underneath those locks chances are you'll be okay with one for 11 bucks but if you can search around and find one that has the metal covering over it I would do that but like I said is it necessary it depends on the situation that you're in and how much heat is down there will it open it I guarantee it will open that gas valve how long will it last that is the question. I hope that helps.

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750mv Thermocouple for Heat Glo Heatilator,Fireplace Thermopile Replacement Fireplace&Stove Accessories for Fire Gas Stoves Heat&Glo Gas Stoves Oven Water Heater&Frying Furnace (24", Aluminum)

Product ID: 514990171

Details

Age Range (Description)
Adult
Brand
METER STAR
Colour
Black
Included Components
1pc 24" 750mv
Special Feature
High Accuracy

⚡750mV power output

📏24/36 inch length options

🔥750°C max heat tolerance

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VT21301

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Upgrade your heat game with precision power!

ENERGY EFFICIENT DESIGN - Engineered to improve energy savings by maintaining precise flame control and reducing gas waste.
TOOL FREE QUICK INSTALL - Spiral and two-pole plug-in types enable fast, hassle-free replacement—get your fireplace back in action instantly.
UNIVERSAL COMPATIBILITY - Fits a wide range of Heat & Glo gas stoves, fireplaces, ovens, and water heaters—one part for many needs.
PRECISION HEAT MONITORING - High-accuracy thermocouple ensures reliable flame detection for optimal safety and performance.
DURABLE HIGH TEMP MATERIALS - Glass fiber and aluminum wire construction withstands extreme temperatures up to 750°C for long-lasting use.

The 750mv Thermocouple by Meter Star is a durable, high-accuracy replacement part designed for Heat & Glo gas fireplaces, stoves, ovens, and water heaters. Available in 24 and 36-inch lengths with heat-resistant glass fiber and aluminum wiring, it reliably monitors flame presence up to 750°C, enhancing safety and energy efficiency. Easy to install without tools, this thermopile ensures your heating appliances perform at their best while saving energy.

Specifications

ASIN	B07LDBHJGH
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#2,665,485 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #4,361 in Gas Stove Replacement Parts
Brand	METER STAR
Brand Name	METER STAR
Colour	Black
Connectivity Technology	Wired
Country of Origin	USA
Customer Reviews	4.4 out of 5 stars 1,356 Reviews
Display Type	Analog
Immersion Depth	24 Inches
Included Components	1pc 24" aluminum 750mv thermocouple
Indoor Outdoor Usage	Indoor
Item Length	1.2 Inches
Lower Temperature Rating	700 Degrees Celsius
Manufacturer	Made In China
Model Name	Universal Gas Fireplace Thermopile Power Generator Thermocouple
Model Number	Universal
Outer Material	Aluminium
Outer Material Type	Aluminium
Part Number	ZC007B
Power Source Type	gas powered
Product Care Instructions	Oven Safe, Wipe Clean
Response Time	0.5 Seconds
Reusability	Rechargeable
Special Feature	High Accuracy
Special Features	High Accuracy
Specification Met	See Manual
UPC	786705009059
Upper Temperature Rating	750 Degrees Celsius

Reviews

D**N

1.01.2025

J**S

6.01.2026

A**R

28.02.2026

G**O

5.02.2026

J**S

21.11.2020

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