The shower never feels consistently comfortable.
When your water supply becomes a daily frustration.
Low pressure?High EAC bills?Sudden temperaturechanges?Hidden leaks?Enough!
Does your shower feel weak, become far too hot when another cold-water tap is opened, or cost more electricity than expected? A sudden major leak can cause immediate damage, while a small dripping leak may remain unnoticed for a long time. And what about hygiene and Legionella?
Pressure, electricity costs, temperature and hygiene are connected parts of the same water supply.
Hot water may be heated longer than it is actually needed.
Another tap can make the shower suddenly far too hot.
A sudden major leak can cause immediate damage. A small dripping leak may remain unnoticed for a long time.
Four familiar frustrations. One practical path to more comfort, control and reassurance.
Designed in Cyprus & GermanyWhy these problems belong together
One water supply.
Several daily consequences.
Pressure, heating cost, sudden temperature changes and Legionella prevention affect everyday comfort and safety. Technical monitoring is a separate task: it checks whether the water system itself is working correctly.
Weak pressure and sudden temperature changes turn a simple shower into a daily irritation.
Without a defined time window, water can be heated when no one actually needs it.
A scheduled hygiene cycle helps reduce the risk of Legionella growth in the warm-water system.
Leaks, pump problems, a defective water heater, faulty temperature sensors or lost communication should trigger a clear warning—not remain unnoticed.
What should change
Your shower should feel predictable.
Your hot water should fit your life.
A better system should solve the everyday frustrations first—without asking you to manage more technology.

A calmer shower
Pressure that feels consistent.
A suitable controlled shower pump should provide comfortable pressure and help prevent disturbing temperature shifts when water is used elsewhere.
Pump shown for illustration. Shower pump not included.Lower avoidable energy use
Hot water ready when you need it—not all day.
Set when the target temperature should be available. Automatic summer and winter time handling helps avoid unnecessary heating outside that window.
- Target temperature within a chosen daily time window
- Automatic summer / winter time adjustment
- Short heating only as an optional convenience
Legionella prevention
A defined hygiene cycle.
A scheduled weekly high-temperature cycle can help reduce the risk of Legionella growth in the warm-water system.
Technical self-monitoring
Early leak warning. Continuous checks.
PHWC monitors leakage conditions, pump operation, water-heater response, temperature sensors and system communication. In normal operation it stays discreetly in the background.
The PHWC answer
How the PHWC system can help.
PHWC coordinates a suitable shower pump, water heating and a defined Legionella-prevention cycle. Separately, its continuous self-monitoring checks the technical condition of the water system and issues warnings when a defined fault occurs. It links the indoor touch unit and mobile phones with the roof installation—without new power cables or complex solar-battery workarounds for shower pumps.
Shower pump required—not included. The pump and any property-specific water or electrical work are selected and installed separately by qualified professionals.
Roof unitMonitors temperature and operating status at the water tank
Indoor & mobile controlTouch unit, smartphone access and live statusContinuous technical self-monitoring
See that the water system is working. Receive a warning when it is not.
This is separate from the Legionella-prevention cycle. PHWC continuously evaluates defined conditions for leaks, pump operation, water-heater response, temperature sensors and system communication. Live status is available on the indoor unit and mobile phones.
- Leakage conditionsNormal
- Pump operationNormal
- Water-heater responseNormal
- Temperature sensorsNormal
- System communicationNormal
Active on error: PHWC stays discreet during normal operation and draws attention to a defined technical fault when action may be required.
Made for properties that matter
Your property may be empty.
Your water system doesn't have to be unchecked.
For holiday homes and rental apartments, PHWC keeps essential status information visible and protects selected settings from unwanted changes.
Modern control for an existing installation.
Useful status information between visits.
Guest comfort with protected settings.
Retrofit communication without a new dedicated cable.
Designed for existing homes
Less disruption. A lasting solution.
PHWC is integrated into the existing hot-water installation by qualified professionals. It is designed to avoid new power cables between the home and roof, unnecessary wall openings and complex solar-battery workarounds for the shower pump.

The roof unit is installed at the water tank.

Simple electrical installation at the tank is required.

The touch unit is installed next to the existing heating switch; control is also available on mobile phones.
Professional water and electrical installation; WiFi for Internet-based time synchronisation.
Shower pump, pump water installation and electrical installation work.
Access point for a roof-mounted low-power solar installation, max. 800 W, single phase.
Technical overview
Industrial components.
Simple everyday control.
Built around a touch interface, stainless steel temperature sensors and three communication technologies.
- User interface
- Touch screen & mobile phones
- Heating schedule
- Defined target-temperature time window
- Time synchronisation
- Automatic summer / winter time
- Water temperature
- Display & control
- Short heating
- 15 / 30 minutes
- Communication
- D-LAN / WiFi / LongRange
- Error warnings
- Defined conditions
- Installation
- Professional
Frequently asked
The practical questions, answered.
Does PHWC include a shower pump?+
No. A suitable shower pump is required for the pressure function, but it is supplied and installed separately.
Are new power cables or a solar-battery system needed for the shower pump?+
PHWC is designed to avoid new power cables between the indoor unit and roof and complex solar-battery workarounds for the shower pump. Any property-specific water or electrical work is assessed by the installer.
Can PHWC control the existing heating installation?+
Yes. PHWC is designed to control the existing water heater through temperature targets, time windows and short heating cycles.
Does the system require WiFi?+
WiFi and Internet access support functions such as accurate time synchronisation. The indoor and roof units also use other documented communication methods.
What does PHWC monitor continuously?+
PHWC evaluates defined conditions for leakage, pump operation, water-heater response, temperature sensors and communication. If a defined fault is detected, the system provides a warning on the indoor unit and through the mobile connection.
Start with your problem
What frustrates you about your water system?
Tell us about the pressure, temperature, energy or hygiene concern in your property. We can then discuss whether PHWC is a suitable answer for your roof-mounted hot-water system.