{"id":1164,"date":"2026-07-30T12:53:10","date_gmt":"2026-07-30T12:53:10","guid":{"rendered":"https:\/\/scanditec.cl\/?p=1164"},"modified":"2026-07-30T12:53:16","modified_gmt":"2026-07-30T12:53:16","slug":"residential-fan-coils-hydronic-system","status":"publish","type":"post","link":"https:\/\/scanditec.cl\/en\/noticias\/fancoils-domesticos-ecosistema-hidronico\/30\/07\/2026","title":{"rendered":"Residential fan coils: heating and cooling in a single unit"},"content":{"rendered":"

Residential fan coils: the fast-response heat emitter that completes the hydronic ecosystem<\/strong><\/h2>\n\n\n\n

While the radiant floor provides stability, the fan coil provides an immediate response\u2014as well as cooling<\/strong><\/h3>\n\n\n\n

When people think of modern heating and cooling systems with heat pumps, the first thing that usually comes to mind is underfloor heating. It makes sense: in Europe, it\u2019s the standard, and as we saw in a previous article<\/a>, it's the perfect match for a heat pump because it operates at low temperatures. But a complete HVAC system is rarely built using just one type of radiator. That's where the fan coils<\/strong> \u2014 a type of heating system that offers features not provided by underfloor heating and is increasingly becoming a standard component in high-end residential projects in Chile.<\/p>\n\n\n\n

The Perfect Partner for a Heat Pump<\/strong><\/h3>\n\n\n\n

When looking for high-efficiency heating for a new building, heat pumps top the list. But to maximize a heat pump's performance, it's essential to pair it with a low-temperature heat emitter<\/strong>. Fan coils meet that exact condition: they operate with water between 35 \u00b0C and 45 \u00b0C\u2014the same range in which a heat pump achieves its best COP\u2014and still deliver high heating capacity thanks to the forced circulation of air through the heat exchanger.<\/p>\n\n\n\n

In new homes, heat pumps are increasingly being combined with underfloor heating as the primary system and with fan coils as a supplement. The reason is simple: Underfloor heating and fan coils serve different purposes<\/strong>. Underfloor heating maintains a stable temperature across the entire surface of the room through radiation\u2014the most natural form of comfort there is\u2014but it is a system with high thermal inertia<\/em>: It takes hours to raise the temperature from 15 \u00b0C to 22 \u00b0C. The fan coil, on the other hand, has low thermal mass<\/strong> and responds within minutes.<\/p>\n\n\n\n

Practical synergy: underfloor heating as the primary climate control system, always running at a moderate temperature; fan coils as an on-demand boost when you need to heat a room quickly. An everyday example\u2014in the morning, a few extra degrees in the bathroom can make all the difference. And while 18 \u00b0C is ideal for sleeping, 22 \u00b0C is better for concentrating at a desk. The fan coil unit allows for these transitions without forcing the entire house to the same temperature.<\/p>\n\n\n\n

Heating and cooling in a single unit<\/strong><\/h3>\n\n\n\n

The other compelling argument\u2014perhaps the most relevant one for the Chilean market\u2014is that a fan coil unit combined with a reversible heat pump<\/strong> (such as the R290 or R32 series from EnergySave) works also<\/em> as a cooling system in the summer. Instead of circulating hot water through the heat exchanger, the system circulates cold water (typically between 7 \u00b0C and 12 \u00b0C), and the fan delivers conditioned air into the room.<\/p>\n\n\n\n

This means that A single installation covers the entire year<\/strong>: the same hydraulic circuit, the same outdoor unit, the same emitter. There is no longer any need to install separate split-system air conditioners, with all the construction work that entails: additional drilling, separate refrigerant piping, multiple outdoor units, and the usual aesthetic consequences.<\/p>\n\n\n\n

With summers getting hotter and hotter\u2014a trend evident both in Santiago and in parts of the south-central region that historically did not require air conditioning\u2014this reversible capacity is shifting from being a nice-to-have feature to a basic requirement in new projects.<\/p>\n\n\n\n

Silence as a Design Criterion<\/strong><\/h3>\n\n\n\n

One issue historically associated with fan coils was noise\u2014loud motors, audible fans, and disturbances in bedrooms. The current generation has solved that problem. The Silence Thin by Emmeti<\/strong>, which is part of the Scanditec ecosystem, uses technology from modulating ventilation<\/strong> which continuously adjusts the fan speed to match the actual heating and cooling demand, keeping noise levels to a minimum in both heating and cooling modes.<\/p>\n\n\n\n

In practice, this makes it possible to install fan coils even in bedrooms and spaces where people spend long periods of time without compromising acoustic comfort\u2014something that, until a few years ago, required specifying different units depending on their location in the home.<\/p>\n\n\n\n

Aesthetic Integration and Smart Control<\/strong><\/h3>\n\n\n\n

Another major advancement is design. Modern fan coils are designed to blend in architecturally<\/strong>, not to hide it. The Silence Thin, for example, has a slim profile that allows it to be installed as part of the furniture or wall paneling, without the bulky housing typical of traditional fan coils.<\/p>\n\n\n\n

The version THIN-4-V<\/strong> includes a built-in thermostat with a front-panel touchscreen (control SMART TOUCH<\/em>) that allows you to adjust the room temperature without relying on the central control system. For multi-zone projects, this means you can customize the temperature in each room without having to wire an additional thermostat to the wall.<\/p>\n\n\n\n

How it integrates into the Scanditec ecosystem<\/strong><\/h3>\n\n\n\n

The fan coil is a component, not a standalone system. Its performance depends on how it is integrated with the rest of the hydronic system:<\/p>\n\n\n\n

    \n
  • EnergySave Heat Pump (R290 or R32 Series).<\/strong> It generates the hot and cold water that supplies the system. The reversibility of this series is what allows the fan coil to operate 12 months a year.<\/li>\n\n\n\n
  • Emmeti multilayer distribution system.<\/strong> Gerpex\/Emmeti Alpert pipes carry water from the outdoor unit to each fan coil with minimal heat loss.<\/li>\n\n\n\n
  • ESBE Valves and Controls.<\/strong> They manage the zones and flow rates so that each area receives exactly the temperature and flow it needs.<\/li>\n\n\n\n
  • Emmeti underfloor heating (optional).<\/strong> It operates in parallel with the fan coils, providing background climate control while the fan coils handle demand peaks and cooling.<\/li>\n<\/ul>\n\n\n\n

    This integration is what sets a well-specified installation apart from one cobbled together from separate parts. When the entire ecosystem is specified, each component contributes what it does best, and the system\u2019s overall efficiency reaches its theoretical maximum.<\/p>\n\n\n\n

    When Does It Make Sense to Specify Fan Coils?<\/strong><\/h3>\n\n\n\n

    Not every project requires fan coils. A small project can be handled with just underfloor heating and a heat pump. Fan coils make sense when:<\/p>\n\n\n\n

      \n
    • Required refrigeration<\/strong> in addition to heating\u2014and they don't want a separate air-conditioning system.<\/li>\n\n\n\n
    • Required quick response<\/strong> in certain spaces (bedrooms, offices, living rooms used occasionally).<\/li>\n\n\n\n
    • The project has mixed-use areas<\/strong>, where some areas require different temperatures.<\/li>\n\n\n\n
    • Wanted reduce the area<\/strong> intended for the HVAC system (wall-mounted fan coils take up much less space than traditional radiators).<\/li>\n<\/ul>\n\n\n\n

      If you're sizing a HVAC system for a residential project, a hotel, an office building, or any application where the balance between heating, cooling, and zone control is important, let's discuss how to integrate fan coils into the design.<\/p>","protected":false},"excerpt":{"rendered":"

      Fancoils dom\u00e9sticos: el emisor de respuesta r\u00e1pida que completa el ecosistema hidr\u00f3nico Cuando el piso radiante entrega la estabilidad, el fancoil entrega la respuesta inmediata \u2014 y tambi\u00e9n la refrigeraci\u00f3n Cuando se piensa en climatizaci\u00f3n moderna con bomba de calor, la primera imagen que aparece suele ser la del piso radiante. Es l\u00f3gico: en Europa […]<\/p>\n","protected":false},"author":1,"featured_media":1165,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[52,53,51,48,49,38,26,54,50],"class_list":["post-1164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia","tag-bomba-de-calor-reversible","tag-ecosistema-hidronico","tag-emmeti-silence-thin","tag-fancoil","tag-fancoils","tag-piso-radiante","tag-r290","tag-r32","tag-refrigeracion-radiante"],"views":97,"_links":{"self":[{"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/posts\/1164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/comments?post=1164"}],"version-history":[{"count":1,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/posts\/1164\/revisions"}],"predecessor-version":[{"id":1166,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/posts\/1164\/revisions\/1166"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/media\/1165"}],"wp:attachment":[{"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/media?parent=1164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/categories?post=1164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scanditec.cl\/en\/wp-json\/wp\/v2\/tags?post=1164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}