Unvented Cylinder Do’s and Don’ts: What Home and Business Owners Should Know

Unvented cylinders are very popular today. However, professional installation, maintenance, and repairs all help to maximise your cylinder’s reliability, efficiency, and lifespan.

Not sure what you should and shouldn’t do? We have you covered. Below, you’ll find important do’s and don’ts to keep in mind.

Unvented Cylinder Do’s

1. Hire a Certified Installer:

If you’re installing a new unvented cylinder, make sure to hire a certified installer. G3-qualified professionals understand the necessary safety measures and comply with UK Building Regulations. Never attempt to install an unvented cylinder on your own.

2. Schedule Regular Maintenance:

Regular maintenance from a qualified engineer is an important part of owning an unvented cylinder (and may be required by your property insurer). At EasyFlow, we provide annual inspections, as well as regular maintenance services to keep your cylinder in great shape and ensure that it complies with requirements.

3. Check the Pressure Relief Valve:

The pressure relief valve on your unvented is an important part of its safety system and is releases pressure if the cylinder overheats, preventing the cylinder from exploding. Have it checked regularly to ensure it’s in good condition.

4. Insulate Your Cylinder:

Insulation helps maintain water temperature in your cylinder, and improves energy efficiency while reducing heating costs. You can insulate using a jacket or you can use sheets of insulation if you prefer. Inspect it regularly to make sure the insulation is in good condition and replace it when necessary.

5. Know Important Warning Signs:

Strange noises, fluctuating water temperature, or reduced water pressure can indicate problems that need immediate attention. If you notice any of these, call for service immediately.

Unvented Don’ts

1. Don’t Attempt DIY Repairs:

Unvented cylinders operate under high pressure and DIY repairs can be extremely dangerous. Always contact a G3-qualified professional for any repairs or modifications to your system to ensure safety and compliance with regulations.

2. Don’t Ignore Leaks:

Ignoring leaks can lead to serious damage and an increased risk of system failure. Even minor leaks can escalate, causing water damage and potentially leading to the failure of the pressure system. If you notice any leaks, contact EasyFlow immediately.

3. Don’t Overlook Manufacturer Instructions:

Each unvented cylinder comes with specific maintenance instructions from the manufacturer. Always follow the manufacturer’s guidelines to ensure optimal performance and safety.

4. Don’t Block Vents or Air Intakes:

Good ventilation is vital for safe operation. Blocking vents or air intakes can lead to pressure build-up and potential system failure. Keep all vents and airways clear and unobstructed.

5. Don’t Neglect the Expansion Vessel:

The expansion vessel on your unvented cylinder fills with excess water as pressure increases within the cylinder’s body. It should be inspected regularly for leaks and signs of damage.

Unvented cylinders offer excellent efficiency, provide mains pressure hot water at every tap in the building, and can last a very long time. However, it’s up to you to maximise your cylinder’s lifespan and safety. Use the do’s and don’ts we’ve discussed here to your advantage. And when it comes to maintenance and repairs, turn to EasyFlow. Our G3-qualified engineers can handle any issues you might have promptly and efficiently.