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Frequently Asked Questions

There are many options to consider, with a choice of different makes and fuel types. Some are suited for large installations while others are designed for smaller or more specialised applications. The Tubman Heating team has experience with all types of boilers and burners and are happy to share their knowledge with you.

If you can connect to the natural gas grid we recommend you do so. Natural gas is the cheapest, most reliable and most efficient fuel. If not, diesel is a good option. Liquid Petroleum Gas (LPG) is another alternative, but typically only for low-powered boilers, as LPG storage for large boilers becomes a complex and costly business. Ready access to solid fuel, such as wood off-cuts at a timber mill, may provide an economic justification for a solid fuel boiler but there are fuel storage, ash disposal, stoking and higher maintenance to consider. Wood pellets are easier on the environment but have a higher capital cost and require dry on-site storage. Tubman Heating can assist you in your choice.

Azwood Energy are the major supplier in New Zealand and are ENplus® certified.

The New Zealand Government’s plan for a net zero carbon 2050 means that businesses need to start working towards this goal. This includes moving towards heating systems with lower emissions and higher efficiency. Electric boilers, biomass boilers and biofuel burners are the products of the future. Tubman Heating can help you find the most suitable product for your business.

The Energy Efficiency & Conservation Authority (EECA) was created by the New Zealand Government to focus on energy efficiency and renewable energy sources. Part of the EECA’s focus is on the decarbonisation of process heating and the GIDI fund can help your business achieve its climate change plans. You can read more on the GIDI fund applications and on how to apply. For product specifications and pricing contact our Sales & Design Engineer Dave Teesdale for assistance.

Regular boiler maintenance is essential. This will minimise downtime and repairs. Tubman Heating can develop a maintenance plan to suit your needs. An older boiler may be more of a maintenance challenge than a new boiler and will almost certainly be less efficient. If your system is critical to your operations you may need to consider having a second boiler and/or burner on site or consider a dual fuel option.

Just call your local Tubman Heating branch if you’d like to talk this through.

You will need to calculate your maximum current draw and what you have spare or you can apply to council to increase your power usage. Our teams can advise you on the best electrical option for your usage or an alternative boiler option.

You will need a back-up generator and an uninterrupted power supply (UPS) to maintain power while the generator kicks in.

Fortunately this is a rare occurrence, but if it is of serious importance to maintain your process you’ll need to have a back-up plan. Fuel supply outages, local or national, can be managed by having a dual fuel burner for your boiler. In the event of a gas outage the boiler can then run on diesel.

The Approved Code of Practice for the Design, Safe Operation, Maintenance and Servicing of Boilers, which is part of the Health and Safety at Work Act 2015, states that steam boilers must be surveyed annually. Tubman Heating can provide survey services and arrange for an independent inspector to certify the boiler.

It depends. A detailed assessment of your current set-up will be required. In many cases, the answer will be ‘no’ and a bigger boiler will need to be considered.

The NZ Government has declared all coal fired boilers in the public sector to be replaced by 2025 and it is likely that there will be future restrictions for coal fired boilers as the country moves towards a net zero 2050. If you have access to reticulated gas, this is your best alternative. There are real savings to be made in fuel costs; there are no storage requirements or delivery trucks; there will be no coal dust, less maintenance, and greater reliability. If there is no reticulated gas available, diesel can also provide fuel cost savings and reduce your need for storage. LPG is another option. Wood pellets are a great renewable energy source and some coal-fired boilers can be converted for biofuel use.

Just call your local Tubman Heating branch at any time, 24 hours a day, 7 days a week. They have experienced service people on hand.

Tubman Heating can install and commission all types of boilers, provided they are certified for use in New Zealand.

The company’s policy has detailed procedure and reporting requirements. It is Site Safe certified, as are all its field staff. The company is Prequal certified to 4-star rating. Health & safety and responsibilities to the environment are taken very seriously. Tubman Heating provide services to some of New Zealand’s leading organisations and pride themselves in meeting or exceeding those companies’ requirements.

Yes, it certainly is. The company is ISO 9001:2015 certified and has been for many years. Quality is at the centre of everything they do. Every staff, management and health & safety meeting has a quality focus where process improvement and customer satisfaction are discussed.