Warmup Undertile Heating has been appraised (BRANZ Appraisal 644 [2022]) for use in internal dry and wet areas of buildings within the following scope:

• on structural substrates of concrete, plywood or compressed fibre cement sheet (excluding particle board flooring); and,
• with optional floor overlays of fibre cement tile underlays or Warmup Insulation Backer Board; and,
• when protected from physical damage by a screed and ceramic or stone tiles; and,
• where floors are designed and constructed such that deflections do not exceed 1/360th of the span; and,
• movement and control joints in the substrate must be carried through to the screed, tile or stone finish; and,
• the design and construction of the movement and control joints is specific to the building and therefore the responsibility of the building designer and building contractor and is therefore outside this scope; and,
• when used in a wet area a waterproofing system must be used; and,
• where floors are designed not to exceed a continuous operating temperature of 35°C; and,
• the system must be installed using detailing as set out in the Technical Literature; and,
• Warmup Undertile Heating must be installed by trained applicators, approved by Warmup New Zealand Ltd

It is important to review the size of the room that is being heated and check for movable and immovable features or furniture in the room. This will determine the actual area to be heated and the size of the heating element required. (the floor under cupboards does not need to be heated).

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The Warmup Undertile Heating System, if designed, used, installed and maintained in accordance with the statements and conditions of BRANZ Appraisal #644 [2017] will meet the following provisions of the New Zealand Building code:

• Clause B2 DURABILITY: Performance B2.3.1(b), 15 years and B2.3.1 (c), 5 years. Warmup Undertile Heating meets these requirements — see paragraphs 8.1 and 8.2
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1 Warmup Undertile Heating meets this requirement and will not present a health hazard to people
• Clause G9 ELECTRICITY: Performance G9.3.1. Warmup Undertile Heating meets this requirement. See Paragraphs 9.1 and 12.1

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BRANZ Appraised

• Can be used in residential (private and terraced houses) and commercial properties — e.g. apartments, aged care facilities, and hotels
• Inslab heating consists of an electric heating element positioned within the concrete slab
• Ideally suited for heating polished or coloured concrete floors, or when using heating in conjunction with particular types flooring such as wood, carpet, vinyl or tile
• Inslab heating can be installed in selected rooms, all of which allow individual control
• Ideal for new homes and extensions
• Recommended for allergy sufferers

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• Proper installation and correct control and operation will ensure economical use —especially if used in conjunction with off peak power
• Silent and odour-free heating system
• Doesn’t dry out the air
• Recommended for people with asthma and allergies

• 10 year warranty on heating elements

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• Can be used in Residential (private and terraced houses) and Commercial properties — e.g. apartments, aged care facilities, and hotels
• Can be used for laminate, carpet, vinyl, engineered wood and other floating floor finishes
• Electric foil heating mats can be used both as a primary or secondary heating source
• Installed directly under the floor finish. No self-levelling required, will not raise the floor levels visibly
• Ideal solution for renovations
• If using laminate or wood, the floor finish can be laid directly on top of the heater or if using vinyl or carpet flooring, the overlay can be used between the heater and the floor finish to give extra protection for the heater
• Can be used on any type of subfloor
• Recommended for allergy sufferers

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Warmup undercarpet heating systems have been in New Zealand since 1994. Warmup has a network of distributors and accredited installed across the country.

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