The cost depends on the size, type, and installation complexity. On average: Low-pressure cylinder replacement – $1,500 - $2,500 Mains pressure upgrade – $2,500 - $4,500 Instant gas system – $3,500 - $5,500 For an accurate quote, contact us @ info@drcylinder.co.nz

Choosing the right hot water cylinder size depends on your household size and usage: 1-2 people – 135L 3-4 people – 180L 5+ people – 180L or more Larger households may benefit from mains pressure cylinders for better performance.

Signs you need a hot water cylinder replacement include: Low hot water pressure or inconsistent flow Leaks or corrosion around the tank Water not heating properly or running out too fast Increased energy bills due to poor efficiency If you notice these issues, contact DR. CYLINDER for an assessment.

Common causes of low hot water pressure include: Old low-pressure system – Consider upgrading to mains pressure. Sediment buildup – Flushing the cylinder may help. Pipe blockages or leaks – A plumber can assess and fix this.

Hot Water Cylinders Stores hot water for immediate use Better for homes with multiple taps running at once Can be powered by electricity, gas, or solar Instant Gas Hot Water Systems Heats water only when needed, reducing energy costs Unlimited hot water supply Space-saving wall-mounted design Choosing the best system depends on your home’s water usage and energy needs.

Low Pressure – Common in older homes, lower flow rate, can cause temperature fluctuations. Mains Pressure – Delivers strong, consistent flow, suitable for modern plumbing and multiple taps running at once. Upgrading to mains pressure improves shower performance and home resale value.

A leaking hot water cylinder could be due to: A faulty pressure relief valve Corrosion or rust inside the tank Loose plumbing connections Ignoring leaks can lead to bigger plumbing issues, so it’s best to get it inspected ASAP.

A well-maintained hot water cylinder typically lasts 10 to 20 years, depending on the material, usage, and water quality. If your cylinder is over 15 years old, showing signs of leaks, rust, or poor heating efficiency, it may be time to replace or upgrade.

Electric hot water cylinders – 1 to 3 hours Gas hot water cylinders – 30 to 60 minutes Instant gas systems – Heats water instantly on demand

Benefits of upgrading: Better shower pressure & improved water flow Supports modern appliances & multiple taps running at once More energy-efficient & reduces heating costs Future-proofs your home for resale value At DR. CYLINDER, we offer expert mains pressure upgrades with professional installation.