OpenTherm is a non-manufacturer-dependent system of communication between modulating HVAC appliances and room thermostats. It consists of a communication protocol and an interface specification. The OpenTherm communication protocol is primarily designed to control modulating heating appliances. The protocol is available to members of the OpenTherm Association only.

Pacifica Home Services Ltd. provide a wide range of HVAC and home improvement services in the region of Houghton Le Spring, in Sunderland, in the United Kingdom.

Pack HVAC are dedicated to provide top-notch heating, ventilation, and air conditioning (HVAC) solutions to ensure optimal comfort and air quality for homes and businesses. Their skilled team specializes in a full range of services, from routine maintenance and quick repairs to new installations and system upgrades. They understand that each home and business has unique cooling needs, which is why they offer customized solutions.

Air Conditioning in London. Residential and commercial Air Conditioning Installers with 30 Years of Experience in London & Kent. Air Conditioning Installation Contractors - Finance & 5-Year Warranty Available.

Perfect Temp Heating and Cooling is one of the best HVAC contractors in Minneapolis, MN, USA. At Perfect Temp, their commitment is to provide customers with the best possible service experience goes beyond just honoring a warranty or showing up when called upon.

Pinder Cooling & Heating was born to deliver unrivaled customer service combined with expert engineering knowledge and the highest quality products in air conditioning and cooling systems.

Plumbing Medic is ready to help with any type of heating and air conditioning job in Gilbert. They’re also able to offer comprehensive plumbing services throughout Maricopa County.

PM IMPIANTI was founded with the aim of building and installing pre-insulated aluminum, galvanized sheet or stainless steel ducts: experience and professionalism at the customer's service. Over time, they have also specialized in the design, installation and maintenance of split, mini-split and air conditioning systems

At Polypipe, they design, develop and manufacture the UK’s widest range of plastic piping products for the construction industry. They provide Plastic Plumbing, Water Management Solutions, Commercial Infrastructure, Residential Infrastructure, Civil Infrastructure, Underfloor Heating, Plumbing, Heating, Building automation and much more.

Prévoté provides globally renowned transport and logistics services, including transport, vehicle rental, logistics and courier solution in Paris, France.

Founded in 2005, Primary Engineer is an educational not-for-profit organization that offers training programs for students to consider STEM, HVAC and engineering careers. They provide Teacher Training, Educational Resources, Industry and Education links, Skills and Policy, STEM Education, Engineering education, Primary Education, CPD, and Data education

Prime Time Boilers are an Essex based company who specialize in a rated energy efficient boiler installation and replacements. Their mission is to supply the customers with the most modern, technically advanced and energy efficient heating systems on the market complete with the longest warranties available.

As Temecula Valley’s most dependable and professional HVAC contractor, ProFlo Air Conditioning, Heating & Plumbing strive to keep their reputation in tact. They hold themselves and their work to the highest standard. Their technicians are constantly improving their skill set by frequently completing required training by their heating and air conditioning appliance suppliers.

Propous is one of the largest independent suppliers of gas and oil burner’s spare parts, valves, air heaters, and HVAC products. The success of the company can be attributed to its efficiency, reliability, technical knowledge and an understanding of the customer’s requirements.

Redwood Services' mission is to support its local partners with shared resources, access to capital and best-in class operating systems and processes – all designed to drive long-term, profitable growth. Founded in 2020, with the backing of the Union Main Group, Redwood Services is actively investing in ‘mission critical’ home services companies, including HVAC, plumbing, and electrical.

Renew East Ltd was born with the aim of having a positive effect on the environment and making sustainability accessible to all. It aims to simplify the process of installing an air source heat pump in the home while providing exceptional and innovative service to customers.

Renewable Equipment Solutions (RES) specializes in the design and supply of bespoke renewable equipment for domestic and commercial premises across the United Kingdom (UK). They offer industry-renowned equipment, comprehensive system designs, and expert technical support. They are a MCS accredited, HEIS consumer code member, TrustMark registered and NICEIC approved company.

The Retrofit Academy is the driving force in retrofit knowledge and skills: building the supply chain with government, industry & education providers.

Rite Way Heating, Cooling & Plumbing is a local plumber and HVAC company, serving home and business owners across Tucson, Arizona, USA. They offer a wide range of heating, cooling, and plumbing products, including air conditioners, furnaces, heat pumps, hot water tanks, and water conditioning systems.

Robert Heath Heating provides domestic heating service, maintenance, and installation for private clients and social landlords. Competitive service for both residential and commercial gas services.

At ScottishPower, they’re working on a better, greener future. They only generate renewable electricity and they’re proud that all their domestic green tariffs are backed by 100% green electricity, made by their windfarms right here in the UK.

SenerTec GmbH, based in Schweinfurt, has been producing and selling the badger (Power plant for heat and electricity) since 1996. The company works on the principle of cogeneration and generates heat and electricity at the same time, because it uses the fuel (natural gas, liquid gas) used extremely efficiently.

Shadow Industrial focuses on buildings with large ceilings that are suitable for a wide range of businesses and commercial premises, such as warehouses, factories, workshops, sports arenas, shopping centers, churches, and more, providing businesses with excellent infrared heat and flexible heating solutions.

Sirius Buying Group will get ahead of the competition with its collective trade purchasing power of more than £120 million+. Currently comprising 188 members and 250 retail outlets, Sirius by virtue of its members is able to facilitate the UK with an extensive collection of home appliance and kitchen retail brands. Through specially negotiated terms with its preferred suppliers, Sirius members are guaranteed to benefit from improved margins.

Smai Service is at the forefront of innovation and efficiency, and guarantees customers a range of HVAC equipment choices in the plumbing and heating sector, for over 20 years.

Smart Solar Energy, which has been conducting R&D studies since 2013 and set out with the principle of providing world-class Smart City Units solutions to all its customers by using the developing technology, Smart Solar Energy has become a leader in Turkey and the world in the last 6 years. It has also become the largest smart city furniture manufacturer in the region.

SO Energy is a London-based supplier of gas and 100% renewable electricity to homes around Great Britain and believes in honesty, transparency, and enabling their customers to make a move towards net zero. It is the only energy supplier that empowers customers by allowing them to vote on how it sources its renewable electricity.

Spa Gas Limited are a Worcestershire-based family-run company established over 20 years ago with over 40 plus years of industry knowledge and experience. Spa Gas design and installation teams provide a tailored service that is both bespoke and unique to every project and client alike.

In 1946, State Water Heaters was founded by Herbert Lindahl, Sr. as a small entrepreneurial company producing coal and wood-burning stoves in a garage in Nashville, Tennessee. In the years that followed, State expanded and became a leader in the water heating industry, through steadfast commitments to seeking new materials, new technology and innovative engineering techniques.

Let the professionals from Steel T Heating & Air Conditioning inspect the HVAC system and pinpoint minor issues quickly, before they graduate into more extensive damage, disruption, and expense. The company's fully-stocked fleet trucks are never more than a phone call away, protecting residents with convenient scheduling during regular hours, and Emergency Assistance 24 hours a day, 7 days a week.