Heat Pump
The temperature changes
MelPump
Monitor and control your heat pump through MelPump.com
Warning! This app might not work properly.
This app version is currently being tested, and has not yet been reviewed. It might not work as expected.
Be extra careful when installing this app.
MelPump gives you a clear view of how your heat pump really performs, and this app brings that insight into Homey. Follow temperatures, COP and energy use in real time, see the heat pump's consumption in Homey Energy, and get notified when MelPump detects a problem such as short cycling or a drop in efficiency.
Combine your heat pump with the rest of your home: block hot water when electricity is expensive, force solar mode when your panels produce a surplus, switch on holiday mode when everyone leaves, or adjust the heat curve ahead of cheap hours. To get started, create an API token in your MelPump account settings and add your heat pump in Homey. This is an unofficial community app: it is not developed, supported or endorsed by MelPump, so please report problems with the app to the app developer and not to MelPump support.
Supported devices
Flow cards
Click on a device above to show related Flow cards only.
When...
Heat Pump
The target temperature changed
Heat Pump
The power changed
Heat Pump
The power meter changed
Heat Pump
The generic alarm turned on
Heat Pump
The generic alarm turned off
Heat Pump
COP changed
Heat Pump
Saving mode activated
Heat Pump
Saving mode deactivated
Heat Pump
Smart Energy switched on
When the Smart Energy function is switched on, e.g. in the MelPump app. Use "Saving mode activated" for when it starts adjusting the heat pump.
Heat Pump
Smart Energy switched off
When the Smart Energy function is switched off, e.g. in the MelPump app.
Heat Pump
Solar mode started
Heat Pump
Solar mode stopped
Heat Pump
Forced solar mode has ended
When solar mode forced from Homey reaches its end time.
Heat Pump
Function was switched State
When a solar mode function is switched on or off, e.g. in the MelPump app.
Heat Pump
New MelPump alarm: Alarm type
Heat Pump
Summer eco activated
Heat Pump
Summer eco deactivated
Heat Pump
Compressor started
Heat Pump
Compressor stopped
Heat Pump
Hot water temperature fell below Temperature °C
Heat Pump
Hot water temperature rose above Temperature °C
Heat Pump
Target flow temperature changed
Heat Pump
Night mode activated
Heat Pump
Night mode deactivated
Heat Pump
Heat pump reports an error
Heat Pump
New MelPump alarm
Heat Pump
Legionella run completed
Heat Pump
MelPump mode changed
Heat Pump
Operation changed
E.g. from heating to hot water or defrost.
Heat Pump
Mode of zone Zone changed
When the control mode of a zone changes, in MelPump, on the heat pump or from a Flow (e.g. from room control to heat curve).
Heat Pump
Compressor started Starts times within an hour
Fires once when the compressor reaches this number of starts within the last hour. Many short runs (short cycling) wear the compressor and lower efficiency.
Heat Pump
Heater has been on for Minutes minutes
Fires once when the immersion heater or booster heater has been on without a break for this long. Direct electric heat is the most expensive way to heat.
Heat Pump
Room temperature zone Zone is Direction target by Degrees °C for Minutes minutes
Fires once when the room has stayed this far from its target temperature for this long, e.g. to warn before it gets cold. Up to 180 minutes.
Heat Pump
Hot water is ready
When the hot water tank reaches its target temperature (within 1 °C). Fires again only after hot water has been used (5 °C below the target).
And...
Heat Pump
The generic alarm is on
Heat Pump
Zone Zone is heating/cooling
Heat Pump
Function is on
Heat Pump
COP is above COP
Heat Pump
Saving mode is active
Heat Pump
There are unacknowledged MelPump alarms
Based on today's alarms, checked every 15 minutes.
Heat Pump
Summer eco is running
Heat Pump
Compressor is running
Heat Pump
Hot water temperature is above Temperature °C
Heat Pump
Night mode is running
True while MelPump's night mode is running and has changed the heat pump's settings, not just when it is switched on.
Heat Pump
Solar mode is active
Heat Pump
Is defrosting
Heat Pump
Immersion heater is on
Heat Pump
Booster heater is on
Heat Pump
Mode of zone Zone is Control mode
Heat Pump
Hot water is ready
Ready = the hot water tank is within 1 °C of its target temperature.
Then...
Heat Pump
Set the temperature °C
Heat Pump
Set MelPump mode to Mode
Heat Pump
Turn Function State
Heat Pump
Turn saving mode State
Saving mode is MelPump's Smart Energy (dynamic electricity pricing).
Heat Pump
Apply hot water preset Preset
Uses the Eco / Comfort / Hot tank temperatures configured in MelPump.
Heat Pump
Force solar mode for Minutes minutes
Heat Pump
Force solar mode until Time
Uses the heat pump's time zone. A time that has already passed today means tomorrow.
Heat Pump
Stop solar mode
Heat Pump
Set hot water temperature to Temperature °C
Heat Pump
Apply preset Preset
Uses the Away / Home / Boost temperatures configured in MelPump.
Heat Pump
Action What
Heat Pump
Set heat curve correction for zone Zone to Correction
Shifts the whole online heat curve up (positive) or down (negative). Only has effect when the zone uses Online Curve mode.
Heat Pump
Set Heating or cooling flow temperature for zone Zone to Temperature °C
Only has effect when the zone uses Constant Flow (heating, 10–80 °C) or Cooling Flow (cooling, 5–25 °C) mode.
Heat Pump
Set zone Zone control mode to Control mode
Changes how the heat pump regulates the zone. Only change this if you know which mode your installation is set up for.
Heat Pump
Acknowledge MelPump alarm Alarm id
Use the "Alarm id" token from the "New MelPump alarm" trigger.
Heat Pump
Acknowledge all MelPump alarms
Heat Pump
Boost hot water for at most Minutes minutes
Forces hot water heating. The app switches it off again when the hot water is ready or the time is up, whichever comes first.
Heat Pump
Turn on holiday mode until Date at Time
The app switches holiday mode off again at that moment (the heat pump's time zone). Switching holiday mode off earlier cancels it.
Widgets
Support
Having an issue with this app? Contact the developer via the developer website.
What’s new
Version 1.1.0 — New widget features: today's figures, a 24-hour power graph, hot water progress, warnings and alarms, data age, a compact layout and optional quick buttons, with instant updates. Also more reliable and lighter: changes from Homey show up within about 20 seconds, temperature sliders send only the final value, fewer requests while MelPump can't be reached, and lower memory use.
MelPump
MelPump is not compatible with the selected Homey.
MelPump will install on Homey shortly.
Changelog
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We’ll let Ted Dÿring know you love the app.
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