Wavin Calefa Heat Interface Units (HIUs) are made for district heating systems in residential buildings, distributing hot water from a central source to individual dwellings. The range includes flexible control options, an auto mode that adapts to usage patterns, and is independently tested to BESA standards for energy efficiency and responsiveness.

  • Heat interface unit range for district heating in homes and apartments
  • Auto mode learns usage patterns to optimise hot water supply
  • Flexible program selection with four bypass control options
  • Independently tested to BESA standard with VWart of 31ºC
  • Designed for easy installation as part of integrated indoor climate solutions
  • Single source supply for heating, ventilation, and smart controls
  • Turnkey project support from design to aftersales

Applications

  • Apartment complexes
  • Residential buildings with district heating
  • New build housing developments
  • Retrofit projects upgrading to low-carbon heating
  • Projects requiring compliance with building regulations

Performance

VWart of 31ºC (2ºC lower than CIBSE CP1 recommendations)

Accreditations

Independently tested to BESA (Building Engineering Services Association) test standard

Technical support

Project support from design and system selection to aftersales and installation