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Quick answer:Upgrade from low pressure to mains pressure hot water across Auckland with Water & Gas Worx. The conversion includes a new Rheem 180L mains pressure cylinder, valve pack, safe tray, seismic restraints, electrical switch kit, and pipework modifications — from $3,799 incl GST fully installed. Installed by Peter — licensed plumber and certifying gasfitter with 17+ years experience. For full pricing visit wgw.co.nz/lp-to-mains-conversion or call 0800 322 322.
Peter installed our new hot water system. He was very professional, thorough, turned up on time, cleaned up after himself and worked very hard. Job well done, and also charges were reasonable, and as quoted. All work certified and legit.
Hot Water Cylinder Installation
Fantastic service, had us up and running with hot water the same day we rang as our old system had died. Great workmanship and tidy work, would recommend!
Emergency Hot Water Replacement
Pete has done quite a bit of plumbing work for us. He is reliable, charges a fair price, and his workmanship is second to none.
Plumbing & Hot Water
A low pressure to mains pressure conversion replaces your old gravity-fed copper cylinder with a modern Rheem Mains Pressure 180L vitreous enamel cylinder. The result is full mains pressure hot water at every tap — stronger showers, faster-filling baths, and compatibility with modern tapware and mixer fittings that require mains pressure to operate properly.
The conversion includes more than just swapping the cylinder. We remove and dispose of the old low-pressure unit, install the new mains pressure cylinder with a full valve pack (pressure-limiting valve, expansion control valve, non-return valve, and tempering valve), fit a safe tray and seismic restraints, reconnect electrics with a new switch kit, and upgrade any pipework sections that are not rated for mains pressure. The whole job is typically done in a day.
This conversion is common across older Auckland suburbs — Howick, Pakuranga, Mt Eden, Grey Lynn, Birkenhead, and anywhere with homes built before 1990 that still run gravity-fed hot water systems. We install Auckland-wide and can usually book within the same week.
| Model | 31218015 |
| Capacity | 177 litres |
| Type | Mains pressure, indoor only |
| Element | 3.0 kW copper screw-in |
| Material | Vitreous enamel with sacrificial magnesium anode |
| Insulation | Solstice Green |
| Finish | Galvanised steel jacket |
| Warranty | 10-year cylinder, 5-year labour, 1-year parts |
| Dimensions (dia x H) | 490 mm x 1,710 mm |
| Weight (empty) | 60 kg |
| Recovery rate | 51 L/hr at 50°C rise |
| Max working pressure | 1,000 kPa |
| Connections (inlet/outlet) | RP 3/4" / 20 mm |
| Thermostat range | 60-70°C |
| Suitable for | 2-3 people (moderate climate) |
Need a Plumber? Call 0800 322 322 — we'll sort it.
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