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Radial Heating and Thermal Waters in a Customizable Microhome

Authors:
Tomás Apparcel, Agustín Hurtado
Radial Heating and Thermal Waters in a Customizable Microhome
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Utilizing thermal waters for radial heating, the microhome offers a customizable living space designed for energy efficiency and sustainable resource management.
5 key facts about this project
01
Utilizes thermal water for efficient radial heating.
02
Gray water is treated and repurposed for non-potable uses.
03
Incorporates CNC Router technology for precise modular construction.
04
Offers four customizable terrace options to enhance outdoor living.
05
Located in the thermal-rich landscape of Termas de Chillán.

The microhome project is situated in the Ñuble region of Chile, specifically in the town of Termas de Chillán. It focuses on using natural thermal resources to provide a comfortable living environment that emphasizes energy efficiency. The design incorporates thermal waters for heating, addressing modern needs for sustainability while offering a flexible layout that can adapt to individual preferences.

Thermal Resource Utilization

The concept relies on a radial heating system that takes advantage of the thermal waters in the area. This system helps maintain a consistent internal temperature, especially in the colder months, which reduces dependence on external heat sources. By harnessing geothermal energy, the design promotes a practical approach to residential heating along with the health benefits of having warm thermal water accessible.

Water Management System

A significant aspect of the microhome is its effective water management system. Gray water is managed through an underground containment system, enabling treatment and reuse for non-drinking purposes. This choice minimizes waste and shows a commitment to environmental responsibility by making efficient use of available resources.

Modular Design and Customization

CNC Router technology plays a key role in the construction of the microhome, offering precision and speed. This modular design allows for high levels of customization, so future residents can adapt their living spaces to meet their specific needs. The flexible layout provides opportunities for personal expression, making it easy to design a home that fits a variety of lifestyles and preferences.

Terrace Integration

The design features several terrace modules that enhance outdoor living space. Residents can choose from four different terrace options, integrating them with the main structure. This addition not only extends the functional area of the home but also encourages residents to connect with the surrounding landscape, promoting a harmonious relationship with the environment.

The project combines practical design with thoughtful environmental considerations, resulting in a microhome that fits well within its setting while providing comfort and adaptability for its inhabitants.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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