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Passive Heating Through Thermal Mass With Integrated Greenhouse Solutions

Author:
Anna Wójcik
Passive Heating Through Thermal Mass With Integrated Greenhouse Solutions

Project in-detail

Harnessing passive heating through an integrated greenhouse and thermal mass, the design prioritizes self-sufficiency and energy efficiency for sustainable living.
5 key facts about this project
01
Integrated greenhouse facilitates year-round food production.
02
Dual-panel system enhances energy self-sufficiency.
03
Rainwater collection system supports sustainability.
04
Modular construction allows for efficient assembly and adaptation.
05
Single-level design promotes accessibility for all residents.

The Sun-Catcher House represents a thoughtful approach to sustainable living through its architectural design. It is designed to function efficiently in diverse settings, whether in a remote natural landscape or an urban environment. The home focuses on reducing dependence on external resources while promoting self-sufficiency through various passive systems for heating, cooling, and water management.

Integrated Greenhouse

A key feature of the design is the integrated greenhouse, which plays an important role throughout the year. In winter, the greenhouse collects solar heat and distributes it throughout the living spaces using a system of convection and thermal mass storage. This design reduces the need for additional heating. In the summer, the greenhouse enhances ventilation naturally, promoting a comfortable indoor climate. The internal doors remain open on cooler days, creating a spatial connection between indoor and outdoor areas that increases livability.

Energy Efficiency

Energy efficiency is a central element of the house. The roof has a dual-panel system on its south slope, consisting of three solar panels for heating water and three photovoltaic panels for generating electricity. This setup allows the house to produce most of its energy needs, decreasing its reliance on non-renewable energy sources.

Water Management

Effective water management is also a crucial aspect of the house. Rainwater is collected from the north side of the roof and directed into a storage tank. This water is then heated by an external heater located in a well-placed technical room. Such a system facilitates efficient water usage, enabling occupants to maintain daily functions without relying on municipal water supply.

Structural Modularity

The design employs a modular construction approach, enhancing both efficiency and adaptability. The house consists of eight modules that act as roof rafters and wall studs, arranged at regular 60 cm intervals. This modularity simplifies construction while providing flexibility in design. Living spaces are all on a single level, making them accessible for people of all ages and abilities.

Hidden storage spaces are integrated both inside and outside the home, promoting organization and efficiency. An accessible technical room houses essential systems, encouraging easy maintenance.

Overall, the Sun-Catcher House exemplifies practical design, focusing on sustainability while ensuring comfort and usability for its residents through its various features.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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