Home News Blog

Which End of the Radiator To Fit the TRV

Oct 30,2020

This is a common dilemma that people have and an oft asked question at DIY Doctor. At one end of the radiator the TRV will be fitted and at the other there will be a lockshield valve, however many are concerned if the smart TRV should go at the flow or the return side of the radiator.

This is a justified concern given that in the past both the TRV and the lockshield valve that were available were only able to work with the flow in one direction. However this in not the case now and most, if not all, TRVs are universal, meaning that the flow can be either way through them without making and alterations to them. This means that there is no restriction to which side of the radiator they can go.

The things that you should consider when choosing which end of the radiator the TRV should go are:

1.Easy of Access: There is no point have a TRV which you cannot get to and change the setting when needed. Don’t locate them where they are likely to be blocked by furniture or are hard to reach

2.Air Flow: The TRV functions by controlling the flow to the radiator based on the temperature of the room (not the radiator, which is a common misconception). In order for it you work efficiently it is necessary to have a good air flow around the TRV so that it is working on the actual room

temperature. This will help the radiator as they work predominantly by convection – air circulating around the room – and not radiation (another common misconception), as a good airflow to the radiator, and TRV also, will make the radiator more effective. Don’t site the TRV behind curtains, furniture or doors which will be open most of the time

3.Aesthetics: Site them where they will look most attractive. If there are a number of radiators in a room, site them on the same side to create the effect of uniformity. Ultimately this is down to your personal choice

Always check the manufacturer’s instructions for any specific instructions and tips.

Remote sensors vs. Remote control thermostats

Oct 30,2020

Changing an Old for a New TRV or Changing a Lockshield Valve for a Thermostatic Radiator Valve

Which End of the Radiator To Fit the TRV

Latest News

Smart HVAC for Schools and Offices: Solving Energy Challenges with LoRaWAN TRV

LoRaWAN vs Zigbee for Commercial HVAC: Why LoRaWAN is Superior for Large Buildings

Commercial LoRaWAN TRV ROI: Why Battery Life is the #1 Factor in Heating Retrofits

BACS Compliant LoRaWAN TRV: A Guide to Meeting EN 15232 Standards

Active ΔT vs. Passive Modulation: Why SA905-T is the Superior Hydraulic Solution

Eliminating UFH Hot and Cold Spots: How Saswell SA905-T Ensures Uniform Heat Distribution

Why a Stepper Motor is Better Than a Wax Element Actuator for ±1.5℃ UFH Control?

What is ΔT Automatic Balancing Control and How Does It Fundamentally Differ from Standard Thermostatic Actuators?

2025 HVAC Thermostat Trends: Color Displays and Deep Customization Define the Market – Why is 4-Inch the Optimal Size?

HVAC systems. HVAC systems are classified as either self-contained unit packages or as central systems

Replacing a Water Heater Thermostat in 8 Steps

What's 24 volt thermostats

6 Best Boiler Thermostats – Smart, WiFi Thermostats For Boilers

The Best Thermostat for Electric Floor Heating Systems

Saswell Sprinkler Timers for Hoses

Best WiFi garden hose timers

What is a Fan Coil Thermostat?

Installing a Thermostat in Your Home

What’s Does a Smart Thermostat Do?

Setting Your Thermostat for (Energy) Savings in Winter

Absorption Heat Pumps

What are HVAC controls?

How to Troubleshoot a Defective Thermostat on An Electric Water Heater

How To Replace A Faulty Thermostat On An Electric Water Heater

How To Test Water Heater Thermostat

7 Steps To Test Water Heater Thermostat

How do I find a Thermostat in my water heater？

LinkTap G2 switch

What is a smart thermostat?

The Best Smart Thermostat

The Best Sprinkler Timers and Controllers for Your Lawn and Garden-Flora

Smart Irrigation Controllers Save Water and Money

Smart irrigation controllers have Difference Between Weather-Based and Soil Moisture Sensors

Best Wifi Water Timer

Best smart sprinkler controller

Remote sensors vs. Remote control thermostats

Changing an Old for a New TRV or Changing a Lockshield Valve for a Thermostatic Radiator Valve

Common Problems with TRVs and Maintaining Thermostatic Radiator Valves

One Radiator Not Getting Hot

The Benefits and the Disadvantages of Having TRV's Fitted

What Is a TRV or Thermostatic Radiator Valve?

Bathrooms: A TRV No-No

How to Unstick a Thermostatic Radiator Valve?

What's Two wire thermostats and Millivolt thermostats?