In-line heating elements
In systems that circulate water, in-line heating elements are useful.
See this review on this Jacuzzi type in-line heater or spa heater:
The heater connects inline to the pool pump and turns on when there’s enough water flow to trigger it.
Type of product:
Make and Model:
Chinese LX Flow type Heater. H30-RS1
Sensor compatibility: Sensor built in, the heater is controlled by a thermoregulator on the side of the module.
Material spec: Plastic
Required flow rate: Set by pressure switch, this switch will need to be pressurised, if it runs straight to a big bore out let with no bends, there will be no back pressure and it may not work
Most Chinese spas with a small plumbing change or can be used as a remote heater on a bespoke project
Connections / Fixings:
1.5″ white plastic female sockets to connect to plumbing
Heater Diameter: 50mm
Overall height: 120mm
Overall length complete: 340mm
High limit thermal cut out built in. This unit is rated IPX5 and has CE approval.