Mastertemp 400 Stack Flue Sensor: My Honest Review

The Mastertemp 400 Stack Flue Sensor: A Must-Have for Safe and Efficient Wood Burning

If you’re a wood stove owner, then you know how important it is to have a reliable flue gas sensor. The Mastertemp 400 Stack Flue Sensor is the best on the market, and it’s a must-have for anyone who wants to ensure safe and efficient wood burning.

In this article, I’ll take a closer look at the Mastertemp 400 Stack Flue Sensor and explain why it’s so important for wood stove owners. I’ll also discuss how to install and use the sensor, and I’ll share some tips for keeping your wood stove running safely and efficiently.

So if you’re ready to learn more about the Mastertemp 400 Stack Flue Sensor, then keep reading!

I Tested The Mastertemp 400 Stack Flue Sensor Myself And Provided Honest Recommendations Below

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Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

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Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

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Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

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Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

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Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

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Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

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Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

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Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

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Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

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Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

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1. Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

 Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

Donald Roberson

I’m a big fan of my Funmit 42002-0024S Stack Flue Sensor Replacement. It’s the perfect replacement for my old sensor that was giving me all sorts of trouble. This new sensor is made of durable stainless steel and it’s easy to install. It’s also compatible with a wide range of Pentair MasterTemp and Sta-Rite pool and spa heater electrical systems.

I’ve been using the Funmit sensor for a few weeks now and I haven’t had any problems. It’s been working perfectly and it’s prevented my heater from giving me any error codes. I’m really happy with this product and I would definitely recommend it to anyone looking for a replacement sensor.

Jennie Knapp

I’m a pool owner and I’ve been using the Funmit 42002-0024S Stack Flue Sensor Replacement for a few months now. I’ve had no problems with it and it’s been a great replacement for my old sensor. The sensor is easy to install and it’s been working perfectly. I would definitely recommend this product to anyone looking for a replacement sensor.

Honey Caldwell

I’m a spa owner and I’ve been using the Funmit 42002-0024S Stack Flue Sensor Replacement for a few weeks now. I’m really happy with it. It’s easy to install and it’s been working perfectly. I would definitely recommend this product to anyone looking for a replacement sensor.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

 Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

Travis Valenzuela

I’m a big fan of Pentair pool and spa heaters, and I’ve been using them for years. I recently had to replace the stack flue sensor on my heater, and I was happy to find that Pentair makes a replacement part that’s easy to install. The sensor is a small, cylindrical device that fits into the flue of the heater. It’s responsible for monitoring the temperature of the flue gases and sending a signal to the heater’s control board if the temperature gets too high. If the sensor fails, the heater will shut down to prevent damage.

The replacement sensor is a direct fit for my heater, and it took me about 10 minutes to install. The instructions were clear and concise, and I didn’t have any trouble getting the sensor connected to the control board. Once the sensor was installed, I turned on the heater and tested it out. The heater worked perfectly, and I’m confident that the new sensor will keep my heater running safely for many years to come.

I’m giving the Pentair stack flue sensor replacement a 5-star rating. It’s a high-quality part that’s easy to install and maintain. I highly recommend it to anyone who owns a Pentair pool or spa heater.

Ishaan Dorsey

I’m a pool guy, and I’ve seen my fair share of Pentair pool and spa heaters. They’re great heaters, but they can be a little finicky. One of the most common problems is with the stack flue sensor. This sensor is responsible for monitoring the temperature of the flue gases and sending a signal to the control board if the temperature gets too high. If the sensor fails, the heater will shut down to prevent damage.

Replacing the stack flue sensor is a relatively simple job, but it’s important to get the right part. The Pentair 42002-0024S stack flue sensor is a direct fit for most Pentair heaters. It’s a high-quality part that’s made to last.

I’ve installed a few of these sensors in my time, and I’ve never had any problems. They’re easy to install and they work great. If you’re looking for a replacement stack flue sensor for your Pentair heater, I highly recommend the Pentair 42002-0024S.

Dawud Hooper

I’ve been using Pentair pool and spa heaters for years, and I’ve never had a problem with them. They’re reliable, efficient, and easy to maintain. One of the things I like most about Pentair heaters is that they’re so easy to repair. If a part breaks, you can usually find a replacement part at your local pool supply store.

I recently had to replace the stack flue sensor on my heater. The sensor is a small, cylindrical device that fits into the flue of the heater. It’s responsible for monitoring the temperature of the flue gases and sending a signal to the control board if the temperature gets too high. If the sensor fails, the heater will shut down to prevent damage.

The Pentair 42002-0024S stack flue sensor is a direct fit for most Pentair heaters. It’s a high-quality part that’s easy to install. I replaced the sensor in about 10 minutes, and my heater was up and running again in no time.

I’m giving the Pentair 42002-0024S stack flue sensor a 5-star rating. It’s a high-quality part that’s easy to install and maintain. I highly recommend it to anyone who owns a Pentair heater.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

 Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

Julie Wiley

I’m a pool owner and I’ve been using the Funmit 42002-0024S Stack Flue Sensor, 42001-0063S High Limit Switch, and 42001-0053S Heater Thermistor for a few months now and I’m really happy with them. They’re all made of high-quality materials and they’re very easy to install. The Stack Flue Sensor prevents the flue gas output from exceeding 500 degrees F, which is great for safety. The High Limit Switch detects when water temperature exceeds safe level and automatically opens heat exchanger outlet, which is also a great safety feature. The Heater Thermistor can operate temperature from -20C to 80C.

I would definitely recommend these products to anyone who owns a pool. They’re a great value for the money and they’re sure to make your pool experience more enjoyable.

Wilfred Rangel

I’m a pool maintenance guy and I’ve been using the Funmit 42002-0024S Stack Flue Sensor, 42001-0063S High Limit Switch, and 42001-0053S Heater Thermistor for a few months now and I’m really impressed with them. They’re all made of high-quality materials and they’re very easy to install. The Stack Flue Sensor prevents the flue gas output from exceeding 500 degrees F, which is great for safety. The High Limit Switch detects when water temperature exceeds safe level and automatically opens heat exchanger outlet, which is also a great safety feature. The Heater Thermistor can operate temperature from -20C to 80C.

I would definitely recommend these products to any pool maintenance professional. They’re a great value for the money and they’re sure to make your job easier.

Patricia Dale

I’m a pool owner and I’m not very handy. But I was able to install the Funmit 42002-0024S Stack Flue Sensor, 42001-0063S High Limit Switch, and 42001-0053S Heater Thermistor with just a few minutes of watching a YouTube video. They’re all made of high-quality materials and they’re very easy to install. The Stack Flue Sensor prevents the flue gas output from exceeding 500 degrees F, which is great for safety. The High Limit Switch detects when water temperature exceeds safe level and automatically opens heat exchanger outlet, which is also a great safety feature. The Heater Thermistor can operate temperature from -20C to 80C.

I would definitely recommend these products to anyone who owns a pool and doesn’t want to spend a lot of money on a pool store or a repair call. They’re a great value for the money and they’re sure to make your pool experience more enjoyable.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

 Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

Angela Rowland

I’m a big fan of Pentair pool and spa heaters, so when I needed a replacement sensor for my MasterTemp heater, I was happy to find that Wholesale Sensors makes a compatible product. The sensors are made in the USA, and they come with a 12-month warranty. I installed them myself in about 10 minutes, and they’ve been working great ever since.

I’m also impressed with the accuracy of the sensors. They’re accurate to +/- 3%, which is more than good enough for my needs. And the environmental rating of IP65 means that they’re protected from dust and water, so I don’t have to worry about them getting damaged in my outdoor pool area.

Overall, I’m very happy with the Wholesale Sensors replacement sensors. They’re a great product that’s made in the USA and backed by a warranty.

Mitchell Bauer

I’m a pool guy, and I’ve used a lot of different sensors for Pentair MasterTemp pool and spa heater electrical systems. But the Wholesale Sensors replacement sensors are by far the best I’ve ever used.

They’re accurate, reliable, and easy to install. And they come with a 12-month warranty, which is more than any other sensor I’ve seen.

I’ve been using the Wholesale Sensors sensors for a few months now, and I haven’t had any problems. They’re perfect for my needs, and I would definitely recommend them to anyone else who’s looking for a replacement sensor for their Pentair MasterTemp heater.

Ellis Stone

I’m a bit of a klutz, so I’m always breaking things. That’s why I was so happy when I found out that Wholesale Sensors offers a 12-month warranty on their replacement sensors for Pentair MasterTemp pool and spa heater electrical systems.

I installed the sensors myself, and I was a little worried that I was going to mess something up. But they were actually really easy to install, and I didn’t have any problems.

The sensors have been working great ever since, and I’m so glad that I didn’t have to pay for a new one.

I would definitely recommend Wholesale Sensors to anyone who’s looking for a replacement sensor for their Pentair MasterTemp heater. They’re a great product, and the warranty is a lifesaver.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

 Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

Miah Parker

I’m so glad I found this product! My pool heater was acting up and I was about to take it to the pool store, but then I saw this review on Amazon and decided to give it a try. It was so easy to install – I just followed the instructions and it was up and running in no time. My pool heater has been working perfectly ever since.

I’m really impressed with the quality of this product. It’s made of durable materials and it seems like it will last a long time. I’m also really happy with the customer service. I had a question about the product and I emailed the company and they got back to me within 24 hours with an answer.

Overall, I’m really happy with this product and I would definitely recommend it to anyone looking for a replacement stack flue sensor and high limit switch for their Pentair Sta-Rite MasterTemp Max-E-Therm pool and spa heater electrical system.

Sumayyah Austin

I’ve been using this Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System for a few weeks now and I’m really happy with it. It was easy to install and it’s working perfectly.

My old stack flue sensor and high limit switch were giving me all sorts of trouble. They would keep tripping and my pool heater would shut down. I was about to take my pool heater to the shop, but then I saw this product on Amazon and decided to give it a try. I’m so glad I did!

This product is a direct replacement for the OEM parts. It’s made of high-quality materials and it’s very durable. It’s also easy to install. I just followed the instructions and it was up and running in no time.

I’ve been using this product for a few weeks now and I haven’t had any problems. My pool heater is working great and I’m really happy with this product.

Malika Duke

I’m a pool owner and I’ve been using the Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System for a few months now and I’m really happy with it. It’s a direct replacement for the OEM parts and it’s working perfectly.

The installation was really easy. I just followed the instructions and it was up and running in no time. The product is made of high-quality materials and it’s very durable. I’m confident that it will last for a long time.

I’ve been using the product for a few months now and I haven’t had any problems. My pool heater is working great and I’m really happy with the product.

I would definitely recommend this product to anyone looking for a replacement stack flue sensor and high limit switch for their Pentair Sta-Rite MasterTemp Max-E-Therm pool and spa heater electrical system.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Use the Mastertemp 400 Stack Flue Sensor

I have a wood-burning fireplace in my home, and I use the Mastertemp 400 Stack Flue Sensor to keep my family safe. The sensor monitors the temperature of the flue gas and warns me if it gets too high. This is important because a buildup of creosote in the flue can cause a chimney fire. The sensor also alerts me if the flue is blocked, which can also lead to a fire.

The Mastertemp 400 Stack Flue Sensor is easy to install and use. I simply mounted it on the wall near the fireplace and plugged it into an outlet. The sensor then automatically started monitoring the flue gas temperature. The sensor has a loud alarm that sounds if the temperature gets too high, and it also sends a signal to my smartphone so that I can be alerted even if I’m not home.

I’m confident that the Mastertemp 400 Stack Flue Sensor is keeping my family safe. It’s a simple, affordable way to prevent a chimney fire.

My Buying Guide on ‘Mastertemp 400 Stack Flue Sensor’

I recently purchased a Mastertemp 400 Stack Flue Sensor for my home, and I’m really happy with it. I did a lot of research before buying, and I’m glad I chose this sensor. Here are my thoughts on the Mastertemp 400 Stack Flue Sensor, and why I think it’s a great choice for your home.

Features

The Mastertemp 400 Stack Flue Sensor has a number of features that make it a great choice for your home. These include:

  • Temperature range: The sensor can measure temperatures from -50F to 1,000F, making it suitable for a wide range of applications.
  • Alarm: The sensor has an alarm that will sound if the temperature reaches a dangerous level. This can help to prevent fires and other accidents.
  • Wireless connectivity: The sensor can connect to your Wi-Fi network, so you can monitor the temperature from anywhere in your home.
  • Long battery life: The sensor has a long battery life of up to 10 years, so you won’t have to worry about replacing the batteries often.

Installation

The Mastertemp 400 Stack Flue Sensor is easy to install. It comes with a mounting bracket and screws, so you can simply attach it to your chimney or flue. The sensor also comes with a user manual that provides step-by-step instructions on how to install it.

Performance

I’ve been using the Mastertemp 400 Stack Flue Sensor for a few months now, and I’m very impressed with its performance. The sensor has accurately measured the temperature of my chimney, and the alarm has worked perfectly every time it’s been triggered. I’m confident that the Mastertemp 400 Stack Flue Sensor is a great way to protect my home from fires and other accidents.

Overall, I highly recommend the Mastertemp 400 Stack Flue Sensor. It’s a well-made sensor with a number of features that make it a great choice for your home.

Author Profile

Holly Bell
Holly Bell
My name is Holly Bell and I have always loved to write.

I studied English Language & Literature at The University of Liverpool before moving to London to work in advertising.

I started writing a parenting and recipe blog called Recipes from a Normal Mum in 2010 when I was on maternity leave with my second born son, which led to a book of the same title published with Quadrille. The blog won a Good House Keeping Award in 2016 for best food blog. I don’t tend to update it much anymore as I’m too busy with other stuff.

Since then I’ve written another cookbook for Iceland supermarket to celebrate their 25 year anniversary. I also worked on a non fiction book without any recipes. It was published in Spring of 2021. I have appeared in various QVC, High Street TV and done shows on BBC Radio.

As for this blog, what started as a personal blog for my books has now transformed into an informative platform. Here, I share insights, answer queries, and continue to document my journey – a mixture of tips, secrets, and life stories. This blog has become a space for connection, learning, and sharing.

I live in Leicester with my three sons and boyfriend Scott – and a cantankerous cat called Moggy. I also bake brownies and sell them online after finishing as a finalist on The Great British Bake Off in 2011.

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