Super-insulated home: Heating by cat power?

Not a lot of people know this, but the average domestic cat gives off nearly 20W of heat. Why is this relevant? Because if your home was super-insulated so that it only lost 1kwh of heat a day, then the body heat of a couple of domestic cats could be sufficient to keep the living space warm – at least until the temperature outside was 16° colder than inside.

See the source image

The total heat lost of a building depends on two main factors – its average heat lost (ie how insulated it is) and the temperature difference between inside and outside. Together these two factors tell you how much heat you need to generate to keep the interior cosy. So in this example your living space set to be a comfortable 20°C, only once the outdoor temperatures fell below 4° would you need to invite additional household pets into the home to boost the heating.

If the building is well insulated enough, the internal gains will be more than the total losses through the building. In other words the number of watts of heat required would be less than the heat given off by occupants and from everyday activities, such as waste heat from appliances, cooking, hot water use, plus any solar gains received through windows.


Thinking of buying a property?

Need help with property investment in the UK from start to finish, Please Contact me

Dennis Bebo – MSC, BSC, DEA, CeMAP

TA DenEco Consultancy –

Published by


I am a Property/Energy Consultant TA DenEco Consultancy - A friendly, energetic and adaptable individual with keen interest and aptitude for learning and motivating others, with great academic skills and work experience in both Life science and Environmental Management, seeking an opportunity to use his proven flair for teamwork and creativity in Property Purchase, Energy Efficiency, Environmental management for sustainable development and growth in any related sector or industry. I help individuals, businesses, SMEs and corporate clients save or make money in regards to Property investment, energy efficiency, environmental management solutions. The foundation of my experience is environmental protection. I have a passion for helping people, businesses and corporate organization achieve their dream through Property Investment and become more efficient and effective in their energy, and environmental management. I get satisfaction from knowing that the work am doing is helping make/save money and the environment.  Contact us @ Outside of work you can find me spending time with family, studying and researching for new opportunities and continuous development. Specialties: Property Investment, EPC provider, Energy Efficiency, Environmental  management.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.