Mixergy Solar X 2.0 Direct Standard 550mm Cylinder | Embedded PV Diverter Electric Cylinder 120-300L

Description

The Mixergy Solar X Direct Standard is a stainless steel unvented cylinder for electric-only properties, with a factory-fitted embedded PV diverter built in as standard. Surplus solar generation is automatically redirected into the immersion heater instead of being exported to the grid, without any separate diverter unit to install.

The 550mm standard case spans 120 to 300 litres across six SKUs, sharing the same 2.0 Controller, WiFi connectivity and stratified thermocline smart charging as the standard Mixergy X range.

120–300L

Capacity Range

550mm

Diameter

Embedded

PV Diverter

30W–3000W

Modulation Range

80°C

Diverter Cut-Out

WiFi

App Connected

Please Note: Current Lead Times

Mixergy cylinders typically ship on a 3 to 6 week lead time, depending on model and quantity ordered. Please call us to check current availability before confirming an installation date.

Good to Know: Solar Surplus, Automatically Used

The embedded diverter continuously modulates output between 30W and 3000W, matching the immersion load to whatever solar surplus is available at any given moment.

Important: Unvented Installation Requirement

This is an unvented cylinder. Installation must be carried out by a G3-competent operative and commissioned per the manufacturer's Installation & Servicing instructions. Incoming mains pressure must be less than 10 bar and at least 1 bar, with a minimum flow rate of 10 L/min. Unvented cylinders must never be used with a solid fuel heat source.

Factory-Fitted PV Diverter

The diverter ships embedded and pre-wired at the factory, cutting installation time and eliminating a separate wall-mounted diverter unit.

Wide Modulation Range

The diverter modulates smoothly across 30W to 3000W, so even small amounts of solar surplus are captured and used rather than exported at zero return.

Stratified Smart Charging

Thermocline sensors mean the controller only heats the volume of water required, so solar-diverted energy is used efficiently rather than reheating a full tank.

550mm Standard Case

The full-diameter case gives maximum capacity per unit height, suiting cylinder cupboards without width restrictions.

Full App Control & Monitoring

The bundled WiFi dongle connects to the Mixergy app, giving visibility of how much solar energy has been diverted alongside remote boost and monitoring.

Safety-Certified Components

Factory-fitted monobloc cold water inlet control group, T&P relief valve (7 bar/90°C), and expansion vessel charged to 3 bar.

Embedded Solar Diverter

Thermostat cut-out temperature	80°C
Immersion heater(s) rating	230–240V~, 2.7–3.0kW
Immersion heater(s) specification	EN 60335-2-73
Immersion heater(s) type	356mm Incoloy/Ti
Modulation range	30W–3000W

Controller & Electrical

Controller generation	2.0 Controller
Electrical supply	16A, dedicated MCB-protected circuit
Adjustable temperature range (digital)	50–65°C
Connectivity	WiFi dongle (supplied) or hardwired Ethernet

Unvented Safety Components

Max. supply pressure to PRV	10 bar
Operating pressure	3 bar
Expansion vessel charge pressure	3 bar
Expansion relief valve setting	6 bar
T&P relief valve setting (pressure)	7 bar
T&P relief valve setting (temperature)	90°C

Construction

Cylinder material	Stainless steel
Insulation type	CFC/HCFC-free polyurethane foam
Insulation thickness	50mm
Connection size/type	22mm compression

Model Range

Model Code	Capacity	ErP	Height	Weight Full	Std. Heat Loss	Min Reheat
MX-120-ELE-550-PVE	120L	B	930mm	140.7kg	0.86 kWh/24h	44 mins
MX-150-ELE-550-PVE	150L	B	1117mm	173.2kg	0.91 kWh/24h	44 mins
MX-180-ELE-550-PVE	180L	B	1305mm	205.2kg	0.96 kWh/24h	44 mins
MX-210-ELE-550-PVE	210L	B	1493mm	239.4kg	1.01 kWh/24h	44 mins
MX-250-ELE-550-PVE	250L	C	1743mm	280.2kg	1.34 kWh/24h	44 mins
MX-300-ELE-550-PVE	300L	C	1989mm	326kg	1.68 kWh/24h	44 mins

How does the embedded PV diverter work?

The diverter senses surplus solar generation and diverts it into the immersion heater, modulating output smoothly between 30W and 3000W to match available surplus.

Do I need a separate PV diverter unit as well?

No — the diverter is factory-fitted and pre-wired inside the cylinder, so no separate wall-mounted diverter box or additional inverter wiring is required.

Does the Solar X Direct need an internet connection to work?

No — the cylinder heats and diverts solar surplus normally without WiFi. An internet connection unlocks app features: remote control, smart tariff scheduling, and diversion monitoring.

What certification does the installer need?

Installation must be carried out by a competent operative who has completed a recognised unvented hot water systems course, with commissioning recorded per Building Regulations (G3) requirements.

What is included in the box?

Each cylinder ships with the monobloc cold water inlet control group, expansion vessel with mounting bracket, factory-fitted immersion heater(s), WiFi dongle, Ethernet cable, gauge, and user guide.

How long is the lead time and how do I check stock?

Lead times typically run 3 to 6 weeks depending on model and order quantity. Please call us to confirm current stock and expected delivery before booking an installation.

BTU Calculator

BTU & WATT Calculator

Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

Calculate

Required Heating

0

Watts

0

BTUs