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45 years of experience

With 45 years of expertise, we deliver trusted heating and boiler installation for year-round comfort.

iOS & Andriod apps

Our apps are available on both iOS and Google platforms.

George Staszak

Mr Combi®

Mr Combi® will help you on that journey, and we would love to support you every step of the way.
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All apps are for all levels beginner to advanced no skills necessary in color easy to follow.
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Don’t stand in front of a boiler with an error code, save time get the APP. Some boilers save a history of faults, that will tell us what is wrong. With the F.22 APP you can contact 17 boiler support lines. The two books are packed with hints & tips on testing parts, flow charts for quick diagnosis 👍 Please Like and share this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one!🌐 https://mrcombi.com/ 📘 https://mrcombi.com/shop/ 🍎 Apple Apps: https://mrcombi.com/apps/ 🤖 Android Apps:https://mrcombi.com/apps/ Take care, George Staszak Mr Combi #MrCombi #BoilerRepair #HeatingTips
Error Code? Don't Panic, we have an APP for that
An Auto By Pass is a small £30 component that can make a big difference to modern boilers, especially combies. It helps maintain correct water flow when radiator valves close, reducing strain on the pump and heat exchanger. This improves boiler efficiency, lowers energy use, and helps the system run more quietly and smoothly. "Has an installer ever given you one of these excuses? Let me know in the comments which one!" An Auto By Pass can also help prevent overheating, kettling, and unnecessary breakdowns, potentially saving homeowners from costly repairs and extending the life of the boiler system. Check yours today Homeowner or installer grab Mr Combi’s Yellow Fault Finding Book today. Full of helpful advice written for the non expert to understand Stop guessing, start fixing, and get your heating back on fast. 👍 Like this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one! 🌐 https://mrcombi.com/📘 https://mrcombi.com/shop/🍎 Apple Apps: https://mrcombi.com/apps/ 🤖 Android Apps:https://mrcombi.com/apps/ Take care, George Staszak Mr Combi #MrCombi #BoilerRepair #HeatingTips
“Why Boilers Fail WITHOUT an Auto By Pass Valve”
Maintaining correct boiler pressure and a healthy expansion vessel is vital for a safe, efficient heating system. The expansion vessel acts as a buffer, absorbing the increased volume of water as it heats up. Without the correct pre-charge or property-specific pressure, the safety valve may discharge, causing persistent pressure loss and damaging internal components. While a bungalow might function well at 1.0 bar, a multi-story town house needs a higher baseline to push water to the top floor. Neglecting this balance is a hidden fault that leads to noise, cold radiators, and expensive, avoidable repairs. The Unseen Fault Getting the pressure wrong for your specific property type is an often unseen fault that leads to noisy pipes, cold radiators, and unnecessary boiler wear. While a bungalow might run perfectly on lower settings, a three-story town house requires a different balance to push water to the top floor effectively. If you're ignoring the height of your home when setting your gauge, you’re likely overlooking a simple fix for poor circulation and system inefficiency that many engineers miss during a standard service. Is Your Pressure Right? The Best Boiler Settings for Bungalows Semis and Town Houses This video provides specific pressure guidelines for different home layouts to prevent common efficiency issues. Mr Combi’s Yellow Fault Finding Book and APPs could have the exact answer you need. Homeowner or installer grab Mr Combi’s Yellow Fault Finding Book today. Full of helpful advice written for the non expert to understand Stop guessing, start fixing, and get your heating back on fast. 👍 Like this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one! 🌐 https://mrcombi.com/📘 https://mrcombi.com/shop/🍎 Apple Apps: https://mrcombi.com/apps/🤖 Android Apps:https://mrcombi.com/apps/ Take care, George Staszak Mr Combi #MrCombi #BoilerRepair #HeatingTips
Is Your Pressure Right? Check and FIX it's EASY
From stuck diverter valves to faulty thermostats or low system pressure, the cause is usually hiding in plain sight. In this video, I’ll show you exactly what to check first and how to diagnose the problem like a pro. Mr Combi’s Yellow Fault Finding Book and APPs could have the exact answer you need. "What's the most common boiler error code you've seen?" Let me know in the comments below Homeowner or installer grab Mr Combi’s Yellow Fault Finding Book today. Full of helpful advice written for the non expert to understand Stop guessing, start fixing, and get your heating back on fast. 👍 Like this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one! 🌐 https://mrcombi.com/ 📘 https://mrcombi.com/shop/ 🍎 Apple Apps: https://mrcombi.com/apps/ 🤖 Android Apps:https://mrcombi.com/apps/ Take care, George Staszak Mr Combi #MrCombi #BoilerRepair #HeatingTips
Popular Faults that are EASY 2 FIX B 4 U Call
"You’ve just spent thousands on a new boiler, thinking you’ve solved your heating bills. But here’s the truth: without the right controls, that boiler is essentially 'brainless' high bills and inefficient. 👍 Like this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one! 🌐 https://mrcombi.com/ 📘 https://mrcombi.com/shop/ 🍎 Apple Apps: https://mrcombi.com/apps/ 🤖 Android Apps:https://mrcombi.com/apps/ If your installer didn't suggest advanced controls, you're literally burning money. It's time to stop the heat bleed and unlock peak performance." Close-up of a basic mechanical stat vs. a modern OpenTherm or weather-compensating control. "Many installers stick to what they know because it’s a 'quick fix.' But don’t settle for 'basic.' If they aren't talking to you about modulation, they're leaving your efficiency on the table. Using a 1960’s room stat to control on a modern boiler is like putting wooden wheels on a Ferrari; you’re literally burning money through inefficient cycling and overshooting temperatures. Installers stop the waste and unlock the true energy-saving potential of your heating system. For the professional diagrams and step-by-step wiring maps to upgrade any system safely, grab my Wiring and Fault Finding books today, also get the APPs. A new combi boiler should deliver high efficiency, but outdated controls can hold it back. Many systems are still fitted with old room stats and basic timers, forcing boilers to run too hot and waste energy. #MrCombi #BoilerRepair #HeatingTips
Boilers are Ruined by OLD Controls
Most homeowners believe their boiler is properly serviced every year, but in reality many services are rushed and incomplete. Installers are often overloaded with too many jobs in a single day, leaving little time for a thorough inspection. 👍 Like this video 📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips 💬 Drop a comment below — I reply to every single one! 🌐 https://mrcombi.com/ 📘 https://mrcombi.com/shop/ 🍎 Apple Apps: https://mrcombi.com/apps/ 🤖 Android Apps:https://mrcombi.com/apps/ A shortage of experienced breakdown engineers only makes the problem worse, increasing pressure on installers and service engineers. Important checks such as combustion analysis, safety inspections, and system performance are sometimes skipped. If the boiler is under manufacturer guarantee, the heating system water quality must be checked annually to keep the warranty valid. Mr Combi books and APPs help engineers learn how to properly test parts and confidently take on every job. #MrCombi #BoilerRepair #HeatingTips
"Boiler Servicing: The Dangerous '15-Minute' Con"
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Supports both Andriod & IOS

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Bedford