Zypho Waste Water Heat Recovery
The Zypho Waste Water Heat Recovery system is an innovative device designed to harness the thermal energy from shower wastewater. By capturing the heat from the outgoing wastewater, this system efficiently preheats incoming cold water, reducing the energy required to reach the desired shower temperature.
The Zypho system integrates a heat recovery unit that effectively transfers the recovered heat, ensuring a eco-friendly solution for heating water. By utilising this technology, the Zypho Waste Water Heat Recovery system helps conserve energy, lower hot water consumption, and promote overall energy efficiency in residential and commercial settings. A Zypho Waste Water Heat Recovery can be expected to increase the efficiency of ones shower by 30-60 percent.

Why do you need Zypho?
- Zypho will cut your energy costs by up to a third
- Virtually maintenance free. Required no more cleaning than a normal drain
- Easy and straightforward installation. Fits in minutes
- Universal Fitting. Compatible with the vast majority of boilers and showers on the market today
- No power needed
- Payback within 2-3 years
Products
Horizontal Solutions
These solutions transfer heat from the shower’s hot waste water to the incoming cold mains supply. The heated water can be directed either to the shower tap, the water heater, or both.
iZI 30 High Flow – Performance and Efficiency
Flow Rate | Efficiency | Pressure Drop |
---|---|---|
5.8 L/min | 31% | 0.2 bar |
9.2 L/min | 28% | 0.6 bar |
12.5 L/min | 25% | 1.1 bar |
iZi 40 Eco Shower – Performance and Efficiency
Flow Rate | Efficiency | Pressure Drop |
---|---|---|
5.8 L/min | 39% | 0.1 bar |
9.2 L/min | 33% | 0.3 bar |
12.5 L/min | 29% | 0.7 bar |
Technical Characteristics
Description | iZi 30 | iZi 40 |
---|---|---|
Temperature Range | 0-60°C | 0-60°C |
Drinking Water Maximum Pressure | 6.0 bar | 6.0 bar |
Drained Water Maximum Flow Rate | 25.0 L/min | 12.5 L/min |
Heat Exchanger Material | Copper | Copper |
Body Material | ABS | ABS |

Vertical Solutions
Suitable for a two-storey house, PiPe 65 is a vertical shower drain heat recovery solution adaptable to shower trays, linear drains or baths. The vertical pipe has a flow drainage of up to 12.5 L/min and is able to deliver energy savings of up to 75%.
PiPe 65
Flow Rate | Efficiency | Pressure Drop |
---|---|---|
5.8 L/min | 67% | 0.1 bar |
9.2 L/min | 63% | 0.2 bar |
12.5 L/min | 58% | 0.3 bar |
PiPe 75
Flow Rate | Efficiency | Pressure Drop |
---|---|---|
5.8 L/min | 74.5% | 0.25 bar |
9.2 L/min | 69.2% | 0.4 bar |
12.5 L/min | 66.2% | 0.6 bar |
Technical Characteristics
Description | PiPe 65 & PiPe 75 |
---|---|
Temperature Range | 0-60°C |
Drinking Water Maximum Pressure | 6.0 bar |
Drained Water Maximum Flow Rate | 25.0 L/min |
Heat Exchanger Material | Stainless Steel 316L |
Body Material | Stainless Steel / PVC |
Overall Height Required for Installation |
PiPe 65 > 1950 mm PiPe 75 > 2350 mm |


Layout Possibilities
Zypho transfers heat from outgoing waste water to incoming cold water from the main water supply. The heated cold water can be connected in one of three ways.
Option A – The Most Efficient
Water is transferred to the tap and the boiler.

Option B
Water is transferred to the tap only.

Option C
Water is transferred to the boiler only
