Residential Series ThermalHEART® Sliding Windows by FIRST Windows & Doors

Residential Series ThermalHEART® Sliding Windows

FIRST Windows & Doors

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A two panel sliding window brings fresh air into the kitchen

Fixed panel with slider behind

Single sliding frame and flush track

Sliding window threshold and double slider track

Sliding window sill and two sliding panels

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Description

Residential Series ThermalHEART® sliding windows use the sliding door system. The sill track has a flushline appearance. Interlocker stiles are flush in the closed position. An over-light transom allows over-lights in association with sliding panels. An under-light transom allows fixed glazing below opening panels, useful if requiring large openings but protecting against falls from a height. A vertical sliding window system is not offered.

Key Features

Flush sill design
Thermal efficiency achieved through thermal breaks in aluminium profiles
24mm IGU as standard but 32m IGU can be used with a wedged bead — compliance with NZBC clause H1 Energy Efficiency requires high performing Low-E double glazing
Door stiles and rails feature slender sightlines
Interlocker stiles vary in depth according to height, width and wind pressure requirements
Sliding windows use the sliding door system
Wide opening is possible in bi-parting or stacking configurations

Ranges

Residential Series ThermalHEART®

Scope of Use

Suitable for broad residential use
Suitable for most applications where non-projecting windows are desired
Need to be used in defined maximum sizes according to the wind exposure
A good option for servery windows
Work well with insect screens

Limitations on Use

Consider the ease of reaching to the window handle if the sliding panel is placed beyond a bench
Some weather protection above e.g. wide eaves recommended to protect open windows
Compliance with Building Code H1 energy efficiency standards requires high performing Low-E double glazing

Statement of Building Code Compliance

Designed, tested and manufactured to meet NZS 4211: Specification for Performance of Windows, and NZS 423: Glazing in Buildings, Parts 1-4
Conforms to all relevant NZ Building Code clauses

In-Service History

Redesigned and relaunched in 2022 (previous version 2011)
New range rolling out nationally; previous version in use in residential projects throughout New Zealand by homeowners, builders, Group home builders and specifiers

Other Performance Attributes

Window and door warranty provided under normal conditions of use against failure of materials and workmanship for a period of five years
Surface finish is covered by a separate performance warranty dependent on the actual finish selected
A hardware/componentry warranty is offered against defects in manufacturing, functionality and surface finish for a period of five years, provided care and maintenance guidelines have been followed

Case Studies

Open Spaces and Sliding Doors Characterise This Unique Coastal Build

FIRST Windows & Doors

October 2021

Case Studies

Documents

Data Sheet: Residential Series ThermalHEART® Windows

2023

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Description

Key Features

Categories

Ranges

Scope of Use

Limitations on Use

Statement of Building Code Compliance

In-Service History

Other Performance Attributes

Residential Series ThermalHEART® Sliding Windows

Residential Series ThermalHEART® Sliding Windows

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