Winter vs Summer: Seasonal Energy Saving Tips

As a homeowner, managing your household’s energy consumption isn't just about cutting costs - it’s also about maintaining comfort all year round.

Whether you're battling the chill of winter or sweltering in the heat of summer, each season has its own unique challenges and opportunities for saving energy.  

Here we outline how, with some clever thinking and some smart strategies, you can reduce your bills, extend the life of the heating system, and lower your environmental impact.

Our team’s top Winter Energy Saving Tips:

1. Seal and Insulate

• Cold drafts are a leading cause of heat loss. Check for air leaks around doors, windows and attic spaces

• Use sealant strips or foam tape to block drafts around windows and doors, especially in older properties

• Adding insulation to attics and basements also helps retain indoor heat. In fact, proper insulation, especially in the loft, can significantly reduce heat loss. Consider cavity wall insulation or external wall insulation if applicable.  

2. Optimise Heating System Efficiency

• Have your boiler or heat pump serviced annually to ensure it's running efficiently

• Replace filters regularly - typically every 1 to 3 months - and consider installing a smart thermostat to automatically adjust temperatures based on your schedule

• Insulate your hot water cylinder as this can prevent heat from escaping, saving energy and money

• Finally, turn down the boiler flow temperature - modern boilers often have a flow temperature that is too high; reducing it can save energy

3. Let the Sun In

• In the winter, the sun still shines! Take advantage of this free “solar heat” by opening south-facing curtains during the day

• Use insulated or thermal curtains that are closed at night to help keep the warmth in and conserve energy

4. Lower the Thermostat

• Lowering your thermostat by just 1 degree, especially when you're sleeping or away, can lead to noticeable savings

• A good rule of thumb is 20°C while awake and 15–17°C while you’re asleep or on holiday

• Also consider using timers and thermostats to ensure your heating is on only when needed

5. Use radiator reflector panels

• These reflect heat back into the room instead of letting it escape through the walls

• Also, make sure furniture and curtains don't obstruct the flow of heat from your radiators  

6. Ventilate properly

• Ensure adequate ventilation to avoid dampness and condensation, which can make your home feel colder.  

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And our team’s Summer Energy Saving Tips:

1. Keep the heat out

• Shade your home from direct sunlight using blinds, shades, or reflective window films

• Exterior shading, like awnings or pergolas, can also reduce heat gain

• At night, ventilate by opening windows if the air is cooler outside

2. Use a programmable or smart thermostat

• Set your thermostat to 25–26°C when you're home and higher when you're away

• Smart thermostats can learn your routine and optimise cooling without sacrificing comfort

3. Maintain your cooling system

• Just like with heating systems, air conditioners need regular maintenance

• Clean or replace filters monthly during high use, and ensure coils and fins are clean and unobstructed

4. Cook smart

• Avoid using ovens or hobs on hot days. These appliances add unwanted heat to your home. Instead, use microwaves, slow cookers, or why not have a BBQ!

5. Make the most of natural ventilation and fans

• Ceiling and floor fans can circulate air effectively and make rooms feel cooler without lowering the temperature

• Fans use much less energy than air conditioners, so use them where you can!

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Here are some bonus year-round tips that work in any season:

1. Upgrade to energy-efficient appliances

• When buying new appliances, look for models with high energy efficiency ratings

• Energy-efficient appliances are identified by an energy label with a scale from A (most efficient) to G (least efficient) so you can identify which ones will be the most efficient in your home

2. Monitor Your Energy Use

• Understanding where your energy is being used helps you make better choices

• Consider using energy monitors or smart home energy management systems to track consumption in real time and identify areas where you can save

3. Unplug or use smart power strips

• Even when turned off, many electronics draw “phantom” power

• Items such as game consoles, computers, TVs, audio devices and some kitchen appliances, like microwaves and coffee machines, draw down the most power when left plugged in or on standby mode. Turn them off at night or when not in use

• You could also consider using smart power strips, which have built-in Wi-Fi that lets you to control individual outlets remotely, often via a smartphone app. They cut off power to devices when not in use, reducing waste and protecting your electronics. They can also be programmed with schedules and timers, and some offer energy monitoring features  

4. Consider upgrading your windows

• While fairly rare these days, you’ll still find some properties with single-pane windows. These are a major source of energy loss

• Consider upgrading to double- or triple-pane windows with low-emissivity (Low-E) coatings to significantly boost efficiency in both summer and winter

5. Insulate water heaters and pipes

• Water heaters account for a sizable portion of home energy use

• By insulating the tank and the first few feet of a hot water pipe can help retain heat and reduce energy demands

6. Take shorter showers

• Reducing your shower time can significantly lower your hot water consumption. Have a word with those teenagers of yours, too!

7. Switch to LED lighting

• LED bulbs use significantly less energy than traditional bulbs and last much longer.  

8. Use your appliances efficiently

• Run your washing machine and dishwasher with full loads, and consider using cold water washes

9. Consider investing in solar panels / heat pumps

• Solar panels and heat pumps provide homeowners with a more efficient and cost effective way to access / generate electricity and heat / power your home

• While the benefits of solar panels will have the greatest impact over the summer for obvious reasons, they also provide benefits throughout the year (have a read of our article: https://www.thermly.co.uk/articles/do-solar-panels-work-in-winter)

• A heat pump’s benefits are keenly felt in winter months, when heating is needed. This article explains more: https://www.thermly.co.uk/articles/heat-pumps-a-solution-for-modern-family-homes  

• Don;t forget, the Government is still offering eligible homeowners £7,500 off the cost of the installation of a heat pump https://www.thermly.co.uk/articles/how-to-apply-for-heat-pump-grant)  

• While we would say this(!), it is commonly accepted that having both solar panels and a heat pump, with a battery for storage, is the optimum way to benefit all year round. And particularly in autumn and spring they’ll be working together effectively to minimise costs

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• Include info about Summer Solstice three month promo]

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Final Thoughts

Every season has its energy challenges, but also its solutions. By taking a proactive approach - whether that’s sealing drafts in the winter or blocking heat in the summer, or investing in green tech for your home, such as solar panels and a heat pump - you can create a more comfortable home while keeping energy costs under control.

Start with small changes, and you’ll see a lasting impact on both your wallet and your family’s comfort.

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