The use of thermoelectricity in buildings represents a disruptive alternative for indoor thermal needs as it is a technology that allows the elimination of refrigerants. In this line of research, authors of this study have worked on the design and construction of several Ventilated Active Thermoelectric Envelope (VATE) prototypes. A VATE is an industrial-scale modular prototype designed to be installed in the building façade and thought to be an alternative solution for heating and cooling in Net Zero Energy Buildings.

Previous prototype modules have been tested to assess their heat power and performance in heating and cooling mode, which could be considered an initial approach towards the solution of designing VATEs that can be replicated. These works have resulted in an improvement of the COP of the system, the relationship of the Peltier cells and the ventilated façade, as well as with the interaction with photovoltaic systems. However, the problem of the thermal bridge when the VATE was turned off remained.

Taking into consideration the lessons learned from previous construction solutions, the system has been redesigned, prioritizing in this case the reduction (not elimination) of the VATE thermal bridge. This article describes and justifies the solutions developed, presents the results achieved for heating and cooling, and raises points about what could evolve from this issue.

在建筑物中使用热电是满足室内热需求的一种破坏性选择，因为它是一种可以消除制冷剂的技术。在这方面的研究中，该研究的作者研究了几种通风式主动热电信封（VATE）原型的设计和构造。VATE是一种工业规模的模块化原型，旨在安装在建筑立面上，被认为是净零能耗建筑供暖和制冷的替代解决方案。

先前的原型模块已经过测试，以评估其在加热和冷却模式下的热功率和性能，这可以认为是设计可复制VATE的解决方案的初始方法。这些工作改善了系统的COP，改善了帕尔贴（Peltier）电池与通风立面的关系，并改善了与光伏系统的相互作用。但是，关闭VATE时的热桥问题仍然存在。

考虑到从以前的施工解决方案中汲取的经验教训，对系统进行了重新设计，在这种情况下，优先考虑减少（而不是消除）VATE热桥。本文介绍并证明了开发的解决方案的合理性，介绍了加热和冷却取得的成果，并提出了有关此问题可能演变的观点。