Time and Temperature Zone Control TTZZ
Time and Temperature Zone Control (TTZZ) refers to heating systems that allow for the independent programming of both the time of heating and the temperature in different areas or zones of a building. This can both help improve comfort levels and help improve energy efficiency of the system.
Such systems work by using multiple thermostats or smart thermostatic radiator valves (TRVs) to control separate heating circuits or zones, allowing energy to be focussed on areas in use. This is different from now relatively rare single-zone heating systems, which effectively use just a single thermostat to control the entire space heating for a building. These systems may also compensation boiler control also know as weather compensation, including an external sensor allowing it to compensate for external temperatures to improve efficiency.
With the onset of the Internet of Things (IoT) and smart technology many of these systems can now be wifi controlled, meaning they can be controlled and monitored remotely from a smart phone or laptop.
[edit] Related articles on Designing Buildings
- Boiler.
- Building standards.
- Heat exchanger.
- Heat interface units.
- Heat meter.
- Heat recovery.
- Heat transfer.
- Radiant heating.
- Sequence control.
- Smart Homes and Buildings market.
- Thermal comfort.
- Thermostat.
- Time and Temperature Zone Control TTZZ.
- Types of boiler.
- Weather compensation.
- Zone control.
Featured articles and news
What they are, how they work and why they are popular in many countries.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.