"This handbook plugs a massive gap in the knowledge marketplace. Many of its contributors are part of the 'new wave' of trainers, professionals who have faced the same challenges on the job and are committed to finding a better and simpler way of improving standards. The information within is presented in clear, practical language, making it a refreshing resource for installers seeking the confidence to tackle larger and more complex jobs.
The collective experience of its contributors, stands as a testament against the current low value tick-box training programs, highlighting the value of genuine, hands-on knowledge."
Kimbo Betty Warmur Academy
"My approach when it comes to heat pumps is all about making them accessible. Making it simple, giving the installers confidence that they can do it and letting them know that there are people willing to help them if needed.
This Pocket Guide embodies that spirit. Congratulations and well done to everyone who contributed."
Samuel Powell Aficionado of Heat Pumpery
"Huge thank you to Ian Edgeworth for this copy of The Pocket Guide To Low Temperature Central Heating.
What do I like about it?
It's collaboratively written, meaning readers benefit from the blended experience of a wide range of well known engineers.
The language used isn't pretentious - it doesn't feel like it's designed to trip the reader up.
There's just enough maths & arithmetic included to allow the reader to calculate & apply the lessons in the real world.
I'm somewhat conflicted because had I this pocket book available 3+ years ago, I would have found it far easier and quicker to upskill my low temperature heating knowledge."
Ross Kirkland Installer Sales Manager (Scotland) Mitsubishi Electric Heating
"Fantastic book! Highly recommended. We endorse this brilliant book to our accredited installers, and everyone who attends our Air Source Heat Pump Training"
Simon Wardle Ultimate Renewables Supplies
Ultimate Renewables Supplies is one of the UK's leading design and supply specialists in Heat Pumps, MVHR, PV & Battery Storage, UFH and MCS Umbrella Scheme to installers and merchant partners across the UK.
"We can't wait for the installers that come through our door to receive one of these, a great read Ian Edgeworth 👏🏻"
Ideal Heating
(All attendees to Ideal Heating's industry leading, BPEC Air Source Heat Pump Course will be be provided with a free copy)
"I loved reading this book by Ian Edgeworth on Air Source Heat Pumps. It helps people understand the inner workings of a renewable heating system and is hugely helpful"
Nathan Gambling: Award Winning Renewable Energy Podcast Host, Heating/Plumbing Lecturer.
"The Pocket Guide is really well written. A fantastic resource for anyone starting to learn about low temperature heating system design."
Steve Clark: Technical Trainer for Mitsubishi Electric / Lv.3 CAVA Certified Assessor. Renewable Technology, Healthy Planet & Self Development Enthusiast.
"I’ve got a growing stack of construction textbooks, but few manage to break down complicated construction techniques and details in an engaging and informative way.
This book does! And it’s funny! The videos attached are also very helpful.
You have to be really passionate to communicate something as technical as this and it’s clearly a labour of love"
James Cornet: Director @Tradefox 🦊 | Transforming trades education, one simulation at a time.
"This book works on so many levels—it can easily inform everyone from secondary school students to experienced engineers. With clear explanations of how a heat pump actually works, it maintains a nice, steady pace that makes it easy to pick up right where you left off. The unique video content also adds real-world value. It’s genuinely a pleasure to read—not a slog like many technical books—more like a reassuring, friendly inner voice."
Lee Clark: Curriculum, Enhancement Lecturer Building Services at West College Scotland
"A big thank you to Ian Edgeworth for sharing his book, Welcome to the Wonderful World of Air Source. Writing this has clearly been a deeply personal journey, and his courage and passion for the heat pump industry shine through on every page. The opening line, "Will it be good enough and will anyone care?", is answered with a resounding yes! It’s a fantastic introduction to the roller coaster that is the heat pump sector. A must-read for anyone in the industry or looking to find out more. Well done, Ian Edgeworth!"
Richard Moncur: Business Development Manager at Samsung Climate Solutions (Heating Products-Scotland)
"The concept of the book is fantastic. Ian's passion for heat pumps is clearly visible on every page. As a heat pump trainer and educator, I am always thinking about how to improve and make education easier and more interactive for students. I think this book will be the first place to look for all trainers because the whole content is step-by-step instruction for all important things in the heat pump world - design, installation, and commission. And of course, easily understandable for everyone."
Mario Dodić: Consultant and Trainer HVAC Educational Hub
"If you have ever wondered about the in's and out's of a heat pump and it's components, but were too afraid to ask, this is the book you need. Gives the history of battle against carbon ,all the components and how they work together without the need to have an engineering degree.
A fantastic addition to anyone's (even non engineers) collection."
Ian Chapman: Gas & Renewables Engineer/Plumber @ CHAPS Heating and Plumbing
"I was lucky to get hold of this new book , it looks into everything heat pumps. How they work, how to design, how to install.
It is perfect as part of the reference library, not only for those getting into heat pumps but also for quality professionals.
Every day is a learning day, especially for the heating industry. I know Ian Edgeworth has spent a long time creating this, and I want to thank all those who helped him.
He is one of our own".
Dave Smith: Inventor and founder of Primary Pro & Condensate Pro (Smartovations Ltd.)
"Our industry suffers from not having good , well written guides to how the kit works. Ian has done a great job filling that void. I recommend buying this book if you are keen to learn more about what's going on under the bonnet"
Graham Hendra: Heat Pump Subject Matter Expert, Refrigeration and Air conditioning Lecturer
"I've been buried in these books this weekend, Ian's backstory, approach & philosophy to learning this new sector really shine. At around 200 pages each, they're not over whelming yet concise enough all important topics are covered - And after 18 years on the tools, I can say I've read plenty of over complicated, technical & simply boring text books!
Ian is talking from experience and knows that learning about heat pumps is daunting, has recognised the link between technical subjects and approach to education."
Louis Cockerill: Ghostwriter for Founders specialising in Construction Tech
"I arrived home to a special delivery this evening from Ian Edgeworth, his new book ‘Welcome to the Wonderful World of Air Source Heat Pumps..........What Kept You?’.
Ian is genuinely passionate about this industry and helping others on their learning and development journeys. I can already tell how many people will benefit from this"
James Law: Head of Heat Pump System Design & MCS Compliance at British Gas. Subject Matter Expert. MCIPHE. HPA Executive Level Technical
"This year I've set myself a couple of goals, one to understand heating systems better, yes I've been in the industry for 40 odd years but there's not much call for back boilers and circulators these days.
Anyway to help, I got myself a copy of Welcome To The Wonderful World Of Air Source Heat Pumps What Kept You? By Ian Edgeworth
What a brilliant book, full of fantastic facts and figures, with all the information that both experienced heat pump engineers and novice engineers will find interesting and informative"
