Will this work in a kingsman fdv350 oem part# 1000-p136wr?

If it is long enough. My cheat sheet recommends a 30", but a 24" will usually fit units of this type. Measure your old one. The only differences are the mounting hardware and the length!

normal volt readings for this thermopile?

I don't remember measuring it, but it worked. Usually the biggest factor affecting the thermopile out put is the intensity of the pilot impingement. The same thermopile can produce anywhere from 300 to 750 millivolts depending on the intensity of pilot impingement.

does this fit a williams wall heater?

Sorry, but I do not have the list of products that will accept this thermopile. I used it for a gas log fireplace unit.

how many volts does this thermopile generate?

all thermopiles generate .750 volts not connected to anything, and .500 when under load. (750 and 500 'millivolts' respectively)

24 Thermopile By Heatilator | Desertcart Ireland

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Description

🔥 Upgrade your heat game with precision and peace of mind! ⚙️

COMPACT LIGHTWEIGHT - At just 41 grams, it’s engineered for easy installation without bulk or weight concerns.
RELIABLE HEAT SENSING - Delivers consistent thermal performance to keep your fireplace firing up smoothly every time.
PRECISION FIT FOR MV SYSTEMS - Seamlessly integrates with a wide range of millivolt heating units for hassle-free upgrades.
SPARE ON HAND PEACE OF MIND - Affordable enough to keep a backup ready—never get caught off guard by unexpected failures.
LICENSED INSTALLATION RECOMMENDED - Ensures safety and optimal performance when installed by certified professionals.

The 24" Thermopile by Heatilator is a lightweight, 41-gram thermal sensor designed for millivolt heating systems. It offers reliable heat detection and fits many MV units, making it an essential upgrade or replacement part. Backed by positive user reviews and engineered for easy installation, it’s a smart choice for professionals and homeowners seeking dependable fireplace performance.

Specifications

ASIN	B00MU5O59A
Best Sellers Rank	1,067,074 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 389 in Heater Parts & Accessories
Brand	Fixitshop
Customer Reviews	4.4 4.4 out of 5 stars (278)
Date First Available	14 Sept. 2014
Guaranteed software updates until	unknown
Item Weight	41 g
Model Number	2103-512
Package Dimensions	11.99 x 7.7 x 1.5 cm; 41 g

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