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Emergency? Call 07833 124134

07833 124134

Hot water

Unvented Hot Water Cylinders in Oldham

Mains-pressure hot water at every tap. vivoHeating supplies, installs, services and repairs unvented cylinders across Oldham and Greater Manchester. G3 qualified, Building Regs notified, fully tested.

Gas Safe Register registered, registration 000000
15+ Years Experience
500+ Jobs Completed
Fully Insured

What we do

Why upgrade to unvented?

Our process

  1. Free survey. We check incoming mains pressure, flow rate and your usage profile to size the cylinder correctly.
  2. Fixed-price quote. All-in price covering cylinder, controls, discharge pipework and Building Regs.
  3. Install. Most installs complete in a single day. Fully tested and commissioned.
  4. Handover. Manufacturer warranty registered, paperwork emailed, service reminder set.

Related services

Frequently asked questions

What is the difference between unvented and vented cylinders?

Unvented (mains-pressure) cylinders give you powerful hot water at every tap and shower without a header tank or pump. Vented cylinders rely on a tank in the loft and gravity, which usually means weaker showers upstairs. Unvented is the modern standard.

Do unvented cylinders need annual servicing?

Yes — annually. The G3 service checks the expansion vessel, pressure relief valves and discharge pipework. We offer a reminder service so you never miss a renewal.

Are unvented cylinders safe?

Yes, when installed and serviced by a G3 qualified engineer. They have multiple layers of safety: an expansion vessel, two pressure relief valves and a tundish-discharge route. We are G3 qualified and Building Regs compliant on every install.

Powerful showers, mains-pressure hot water

G3 qualified unvented cylinder install, service or repair. Free survey, fixed-price quote, no jargon.