Grant Vortex Outdoor Diesel Condensing Boiler 46kw
Grant
Designed to withstand the demanding New Zealand climate, the Grant Vortex Outdoor Diesel Condensing Boiler 46kw is the ultimate external hydronic heating solution for larger Kiwi homes and light commercial projects. Engineering excellence meets trade-quality durability in this high-efficiency outdoor boiler, designed to free up valuable indoor utility space while delivering whisper-quiet, exceptionally reliable warmth when you need it most.
Whether you are a trade professional planning a high-spec installation or a homeowner upgrading your central heating system, this outdoor diesel condensing boiler offers unmatched performance. Featuring a dual set point, it easily manages both your central heating (underfloor or radiators) and an indirect domestic hot water system simultaneously to keep your entire household comfortable year-round.
Why Choose the Grant Vortex Outdoor Diesel Boiler?
- Maximum Fuel Efficiency: Utilises advanced condensing technology and a high-efficiency three-pass cast iron heat exchanger to deliver exceptional fuel economy and lower running costs for New Zealand homes.
- Space-Saving Outdoor Design: Weatherproof exterior housing eliminates the need for indoor boiler rooms or complex indoor flueing, making it ideal for new builds and retrofits.
- Premium Components: Fully equipped with an internal world-class Riello RDB blown diesel burner, integrated circulating pump, expansion tank, automatic air vent valve, and safety valve.
- Built to Last: Proudly made in Ireland and backed by an industry-leading 5-year parts and labour guarantee, ensuring peace of mind in NZ's harshest winter conditions.
Technical Specifications:
- Model: Grant Vortex Outdoor Diesel Condensing Boiler 46kw
- Output Range: 36.0 kW to 46.0 kW
- Burner Type: Internal Riello RDB Blown Diesel Burner
- Dimensions: 900mm (High) x 470mm (Wide) x 603mm (Deep)
- Country of Origin: Made in Ireland
- Warranty: 5 Years Parts and Labour Guarantee
Get a Custom Quote & Installation Plan
Due to the bespoke nature of central heating systems and unique site requirements, pricing for this product is POA (Price on Application). Our team of heating specialists at Pratts offers professional site-visits, expert design consultations, and full installation services compliant with all NZ standards.
Ready to upgrade your home heating? Contact Pratts today to book your site inspection and receive an accurate, tailored quote for your project.

