Solar water heater and heat pump system — EngiTech
Registered Mechanical Engineer · Harare, Zimbabwe

Comfort With or Without ZESA™

Engineering Hot Water & Energy Systems for buildings where performance matters. Luxury residential · Hospitality · Healthcare · Commercial · Industrial.

<10s
Hot water delivery
COP 4.25
Heat pump efficiency
28–30°C
Pool year-round
−91%
Generator fuel
3 tiers
Energy independence
Premium home with solar panels — EngiTech Our Belief
Core Philosophy

Our Belief

Great buildings should perform as well as they look.

Every year, millions are invested constructing beautiful homes, hotels and commercial buildings. Yet the systems people rely on daily often perform far below expectations. We believe exceptional buildings deserve exceptional engineering.

Water Efficiency

Eliminating wait times for hot water and maintaining consistent pressure at every fixture, every floor.

Capacity Management

Ensuring an uninterrupted supply of hot water for all users — storage engineered around actual demand.

Energy Optimisation

Reducing unnecessary generator reliance. Your generator should be for emergencies — not for showers.

System Integrity

Maximising the ROI and output of solar energy investments — every system engineered as one.

Our Discipline

Performance Engineering™

EngiTech doesn't simply offer five services. We practise one discipline: Performance Engineering™ — designed to optimise every system that determines how a property actually performs for the people who occupy it.

Pressure

Consistent water pressure throughout the building — stable, powerful, hotel-quality performance for every user.

Availability

Hot water capacity matched to actual demand — no rationing, no scheduling mornings around the geyser.

Efficiency

Hot water where it is needed, when it is needed — in under 10 seconds at every fixture.

Resilience

Energy Independence™ — integration with renewable energy, battery storage and backup systems. Comfort with or without ZESA.

Expandability

Every system is designed to accommodate future growth — upgrades without demolition.

Comfort

A premium user experience across every application — residential, hospitality, healthcare or commercial.

Lifetime Performance

Reliable operation for decades — not months. Engineered, commissioned, maintained and verified in writing.

We don't engineer products. We engineer performance.

Verified data · what your current system is costing you

Every figure, sourced.

From ZERA, Zimbabwe Tourism Authority, Airbtics, CIBSE Guide G and UK Building Regulations Part G. Verified June 2026.

−91%
Generator fuel — water heating

Heat pump at COP 4.25 vs resistance element at COP 1.0 — from day one of operation.

ZERA $2.11/L · ITS-11HD COP 4.25 · June 2026
15–25%
Booking suppression / 0.5★ drop

26.8% of Harare's international arrivals are from the UK — where hot water arrives in under 5 seconds.

ZTA 2023 · Airbtics April 2026
90L
Wasted daily — gravity system

A 4-bathroom home loses up to 90 litres daily to cold run-off before hot water arrives at any tap.

CIBSE Guide G · 15L/min supply average
1.5 min
Upper-floor gravity wait → under 10s

An 89% reduction in wait time — matching the international standard guests arrive expecting.

UK Building Regs Part G · CIBSE Guide G
<1%
Of Harare vacation rentals with heated pool

Fewer than 8 of 1,248 active listings. Those that do earn a measurable nightly rate premium every winter.

Airbtics April 2026
−75%
Electricity for identical hot water output

COP 4.25 heat pump vs COP 1.0 resistance element on ZETDC grid at $0.13/kWh.

ITS-11HD datasheet · ZETDC June 2026
Our Engineering Services

Five Services. One Discipline.

Innovative hot water and energy solutions for homes and large-scale facilities — every solution backed by Signature Living Membership™.

01

Hotel Pressure™ Hot Water Systems

Pressure-balanced hot water delivering stable temperatures and consistent pressure across residential, hospitality and commercial applications. Flagship product family — four engineered systems, one powerful outcome.

Hotel Pressure
02

Custom-Sized Hot Water Storage™

Engineered hot water storage from 100L to over 1,000L — designed around actual demand, occupancy and usage profiles, not standard tank catalogues. Buildings don't use hot water. People do.

Sized to You
03

Energy Independence™

Smartly engineered solar, battery and backup power solutions designed around the way buildings operate. Essential™, Plus™ and Elite™.

Energy Independence
04

Instant Hot Water™

Advanced recirculation technology — hot water in under 10 seconds at every fixture while eliminating water waste. Integrates seamlessly into new builds, renovations and retrofits.

Under 10 Seconds
05

Heated Pool Experiences™

Swim in comfort, every month of the year. High-efficiency commercial and residential pool heating — advanced inverter technology, near-silent operation and smart solar integration.

Swim All Year
Flagship product family · Hotel Pressure™ for your Home

Hotel Pressure™ for Your Home

Four engineered systems. Every one delivers the same powerful hotel-pressure experience. The differences relate to performance during outages, weather, and future expansion.

Maximum Expansion

Vacuum Tube Solar (Ground Mounted)

Wired to your inverter — an outage never stops it collecting heat. The strongest solar contribution in the range. Upgradeable to a heat pump at any point.

From (150L)
$2,957
Future Ready

SolarPV, Powered by Elon Smart™

Heats your water today with a clear, no-waste path to a full heat pump upgrade whenever you're ready. Affordable entry with expansion built in.

From (150L)
$2,482
Integrated Simplicity

Vacuum Tube Solar (Roof Mounted)

Lowest cost, simplest system in the range. Nothing to service. One honest limitation: no upgrade path — upgrading beyond it requires replacing the complete unit.

From (150L)
$1,400*

*Roof Mounted pricing is a build-up estimate, not yet a locked EngiTech trade quote. Final pricing confirmed at assessment. All prices are starting prices at 150L.

Comprehensive Engineering Support

Energy Independence™

Whether you're building new, buying your first solar system, improving an existing installation, or replacing one that never met expectations — EngiTech provides complete engineering support.

Solar panels and battery storage — EngiTech Energy Independence

New Energy Systems™

Complete design and installation — Solar PV, hybrid inverters, battery storage, backup power integration, commissioning.

Energy Health Check™

Professional assessment of existing installations — solar performance, battery condition, inverter operation, electrical safety, optimisation recommendations. One of EngiTech's highest-value consulting services.

Energy Upgrades™

Additional panels, battery expansion, inverter upgrades, generator integration, heat pump integration and EV readiness.

Energy Independence Packages™

Three grades — Essential™, Plus™ and Elite™ — at 5kVA, 6kVA, 8kVA and 10kVA. The engineer confirms the correct size; the grade sets the quality and resilience of the components.

Package tiers — 5kVA configurations shown
Essential™

Core Autonomy

The foundation level — hot water and essential loads running without ZESA.

Panels6 × 550W (3.3kWp)
InverterMust
Battery1 × 5.12kWh
From $1,996
Plus™

Expanded Capacity

Extended independence — more reliable components and longer outage coverage.

Panels6 × 550W (3.3kWp)
InverterGrowatt / LuxPower
Battery1 × 5.12kWh
From $2,146
Elite™

Advanced Performance

Full building energy independence — the highest-spec components, double the storage.

Panels10 × 550W (5.5kWp)
InverterDeye
Battery2 × 5.12kWh (10.24kWh)
From $4,120

All figures are supplier cost-basis estimates, not yet locked EngiTech retail quotes. Higher-capacity configurations (6kVA–10kVA) available — confirmed at assessment. Warranties vary by grade: typically 12–24 months inverter, 24–60 months battery, 20 years panels.

The Proof · Comfort With Or Without ZESA™

Proven Performance

When ZESA disappears, how long can a building continue operating normally? Modelled on a common premium residential scenario: six-person household, 200L storage, existing solar PV, hybrid inverter, battery storage — generator OFF. That's when engineering matters most — after two or three cloudy days without reliable ZESA.

SystemSunny AMSunny PMOvercast
Hotel Pressure™ Heat Pump★★★★★★★★★★★★★★★
Vacuum Tube Solar (Ground Mounted)★★★★★★★★★★★★★★★
SolarPV — Elon Smart™★★★★★★★★★★★★★★★
Vacuum Tube Solar (Roof Mounted)★★★★★★★★★★★★★★★

Engineered ResilienceOur systems maintain high functionality even during power outages — not as a backup feature, but as the primary design objective.

Verified PerformanceReliability backed by rigorous performance modelling of integrated heat pump and solar systems.

Operational ContinuityProven ability to sustain critical thermal functions independently of grid stability.

Who We Serve

Your Situation. Your Starting Point.

Every situation has a specific problem. Every problem has a specific free assessment designed around it. Any suburb in Zimbabwe. No gate on decision authority.

01
Airbnb & Vacation Rental Hosts

Hosting International Guests

26.8% of Harare's international arrivals are from the UK, where hot water arrives in under 5 seconds. A 0.5-star rating drop from shower complaints suppresses future bookings by 15–25%. The review is written at the airport — before you know there's a problem.

Free 5-Star Guest Experience Assessment →
02
Renovating Homeowners

Renovating Your Home

The decisions available while walls are open cost a fraction of what they cost after the plasterer leaves. A return loop through an open ceiling — post-plaster retrofit requires opening finished walls at a multiple of the renovation-stage cost. This is not a sales technique. The window is physical.

Free Renovation Hot Water Design Review →
03
Dream Home Builders

Building Your Dream Home

Hot water decisions are being made on your build right now, by default, by contractors who have never spoken to each other. Your solar contractor and your hot water contractor are designing two independent systems. You are building once.

Free Dream Home Water Design Review →
04
Diaspora Homeowners

Managing From Abroad

Assessment conducted remotely. No return trip required. A local contact attends the site visit. You join findings by video. The written report arrives in your inbox within 48 hours. Read it in Birmingham. Act from anywhere.

Free International Standard Hot Water Review →
05
Property Developers

Developing Premium Properties

Inverter-compatible heated water across every unit — specified once, replicated consistently. No roof tanks. Maintained rooflines. A differentiator no Harare development currently advertises with engineering backing.

Free Development Premiumisation Review →
06
Architects & Designers

Protecting Your Design Vision

The fittings you specified need 1.0 bar minimum dynamic pressure. A Harare gravity supply delivers 0.3–0.5 bar. No tanks on the roof means rooflines stay exactly as drawn. The gap closes at design stage — before construction fixes it permanently.

Free Architectural Hot Water Design Review →
Delivering tailored solutions across diverse sectors

Industries We Serve

The technology changes by application. The discipline doesn't — every project is measured against the Seven Performance Standards™.

Luxury Residential

Premium homes, estates and renovations — our founding market and deepest source of engineering experience.

Property Developers

Residential estates, apartment developments and mixed-use projects — specified once, replicated consistently across every unit.

Hospitality

Hotels, lodges, resorts and Airbnb developments where guest experience and operating cost both depend on the same engineering.

Healthcare

Hospitals, clinics, laboratories and healthcare facilities requiring dependable hot water systems — clinical reliability, engineered.

Education

Boarding schools, universities and student accommodation — consistent availability over a longer operating day.

Commercial Buildings

Office developments, wellness centres, gyms and commercial facilities — optimising workspace productivity and energy efficiency.

Industrial & Mining

Mining accommodation, processing facilities, workshops and industrial plants — robust infrastructure for heavy-duty environments.

Estate Developers

Strategic planning and end-to-end project management — every system a performance differentiator for the development.

A systematic approach · how we work

The EngiTech Process

Every engagement follows the same disciplined process — from first contact to commissioned installation, every step in writing.

01

Performance Assessment™

Understanding current conditions and future requirements — on site, with a Registered Engineer, before any equipment is chosen.

02

Demand Analysis

Engineering around occupancy and operational needs — detailed modelling of specific energy and comfort loads.

03

System Design

Integrated water and energy engineering — solutions tailored to your unique requirements, not a catalogue selection.

04

Equipment Selection

Choosing the right technologies — not simply the biggest. Independent recommendations aligned to the Seven Performance Standards™.

05

Professional Installation

Precision implementation by certified engineering technicians — installed to recognised engineering standards.

06

Testing & Commissioning

Every system verified and measured before handover. Performance confirmed in writing. Commissioning data record produced.

07

Signature Living Membership™

Ongoing maintenance and performance optimisation throughout the system's life — because engineered systems deserve professional care.

"Performance Is Engineered."

Start with Assessment →
Client outcomes

What changes after the Assessment.

"We went from waiting over a minute for hot water to getting it in under 10 seconds — every bathroom, every morning. I didn't realise how much it was affecting the routine until it was fixed."

Borrowdale · 4-bedroom homeowner

"International guests stopped mentioning the shower in their reviews. Our rating recovered within two months. We haven't run the generator for water heating since installation."

Highlands · Vacation rental host, 5-bedroom

"We use the pool in July now. International guests who book in winter mention the heated pool in their five-star reviews. It's the reason some of them rebook."

Glen Lorne · Luxury vacation rental with heated pool
Our Mission

About EngiTech

EngiTech is a specialist engineering company that designs, installs, commissions and maintains integrated water and energy systems for buildings where comfort, reliability and operational performance are critical.

Rather than supplying individual products, we engineer complete systems that combine hot water, water pressure, thermal storage, renewable energy, backup power and pool heating into one coordinated solution.

Lifecycle ManagementFrom initial design and installation to commissioning and ongoing maintenance.
Integrated SolutionsSpecialising in water, energy and thermal storage technologies — engineered to work together.
Resilience & ReliabilitySystems designed for consistent performance, independent of grid stability.
Book Free Assessment →
Engineer monitoring integrated energy and water management system
LM

Leopold Mhlanga

Registered Mechanical Engineer · ZIE #043344 — BSc (Hons) Mechanical Engineering, University of Zimbabwe · Executive MBA, Africa University

Approved Technology Partners
ITSKwikotDeyeGrowattMustPrimaxGrohe
Our Values

What We Stand For

Engineering Excellence

Every system engineered — not guessed.

Integrity

We recommend what is technically right, not simply what is easiest to sell.

Innovation

Continuously improving the way buildings use water and energy.

Quality

Every installation reflects our reputation.

Client Partnership — we build relationships that continue long after installation, through Signature Living Membership™.

Our Manifesto

We Believe...
Nobody should wait for hot water.
Every shower should feel like a luxury hotel.
Water pressure should inspire confidence.
Solar should reduce dependence on generators.
Pools should be warm whenever people want to swim.
Engineering should simplify life.
Comfort should never depend on ZESA.
Every building should perform as well as it was designed to look.

That's why we exist.

Ongoing care · step 7 of the process

Signature Living Membership™

Installation is only the beginning. Our membership programme provides ongoing support to ensure your systems continue performing at their best. Because engineered systems deserve professional care.

Preventive Maintenance

Scheduled maintenance before problems develop — not reactive repairs after they do.

Performance Inspections

Annual verification that every system is still delivering commissioned performance — in writing.

Energy Health Checks

Solar, battery and inverter assessments — optimisation recommendations included.

Hot Water System Servicing

Heat pump, cylinder, recirculation and pressure system servicing to manufacturer standards.

Pool Heating Optimisation

Seasonal settings, efficiency tuning and temperature management for year-round pool performance.

Priority Response

Members are attended to ahead of new enquiries. Technical support available between scheduled visits.

Common questions

Before you book.

What does the Performance Assessment™ cover?
Your current system configuration, geyser tank suitability as an upgrade platform, backup power compatibility with a written Energy Resilience Verdict, hot water delivery speed and pressure measured at every fixture, energy performance of existing solar, battery and inverter systems, and a Staged Improvement Roadmap. Every finding in writing — yours to keep regardless of your decision.
Does the assessment cost anything?
No. Completely free. You receive the full written Performance Assessment™ report regardless of whether you proceed with any installation. No obligation, no follow-up pressure.
Can it be conducted remotely?
Yes — particularly for diaspora and remotely managed properties. A local contact attends the site visit. You join the findings presentation by video call (WhatsApp, Zoom or Teams). The written report is delivered by email within 48 hours. No return trip required at any stage.
Do I have to commit to anything?
No. The assessment is purely advisory — no obligation, no sales pressure. The report is yours to keep regardless. If our engineering cannot improve at least one of your key outcomes, we won't recommend it.
How long does the assessment take?
Site visit: approximately 60–90 minutes. Written Performance Assessment™ report delivered within 48 hours of the visit.
Who conducts the assessment?
Leopold Mhlanga, Registered Mechanical Engineer, founder and director of EngiTech Private Limited (ZIE Corporate Member #043344). The report is signed and stamped by a Registered Engineer — not a sales technician, not a contractor's representative.
What areas do you serve?
Any suburb in Zimbabwe. No geographic restriction on assessments. Wave 1 priority areas include Borrowdale, Highlands, Glen Lorne, Greystone Park, Mandara and Chisipite. Premium homes, hospitality, healthcare and commercial properties anywhere in Zimbabwe qualify for the free assessment.
What is included in Signature Living Membership™?
Preventive maintenance, annual performance inspections, Energy Health Checks, hot water system servicing, pool heating optimisation, technical support and priority response. The membership converts a once-off installation into a decades-long performance relationship.
EngiTech engineer in branded hard hat and workwear
Leopold MhlangaFounder & Lead Engineer
Book Your Performance Assessment™

Engineering Hot Water & Energy Systems for buildings where performance matters.

A Registered Engineer visits your property. Every finding in writing. Yours to keep regardless of your decision. At no charge. Residential · Hospitality · Healthcare · Commercial · Industrial.

Contact EngiTech

Start with a conversation.

WhatsApp AUDIT to book your Performance Assessment™. We're based in Harare and respond the same working day.

WhatsApp (preferred)+263 719 709 613
Emailenquiries@engitech.co.zw
Websitewww.engitech.co.zw
Assessment bookingWhatsApp AUDIT →
Response timeSame working day
BaseHarare, Zimbabwe
To book, WhatsApp this word
AUDIT
Send to +263 719 709 613
Open WhatsApp →