Hotbot by Plentify2022-06-15T17:10:03+02:00

Meet HotBot™ by Plentify

Smart savings

Use up to 30% less energy heating water and track savings in real-time

Intuitive control

Schedule your hot water needs and control your water heater from anywhere

Real-time protection

Detect leaks, prevent damage to your home, and monitor water heater performance

What is HotBot?

HotBot is a small smart energy device fused with artificial intelligence, that connects to any existing electric water heater, and allows you to control it from anywhere via an app. It intelligently turns your water heater on and off, giving you hot water when you need it and saving you money and energy when you don’t. HotBot also automatically detects leaks and alerts you in real-time for better home protection.

Together with all other HotBots, we can fix loadshedding by intelligently shifting electricity usage away from the times when our electricity grid is under the most strain.

It’s time to upgrade

Water heaters are responsible for
40 – 60% of your electricity bill

Electricity prices have increased
5x in the past 10 years

A typical water heater bursts every
5 – 10 years due to undetected issues

Get HotBot now

Take control and start saving

Install

Pick a convenient time for an accredited plumber to install your HotBot.

Personalise

Set the times when you want hot water through the Plentify app – and let HotBot do the rest.

Save

Track your savings and adjust or override the system at any time.

Schedule hot water
when you need it

Override any time

Track your savings

Get HotBot now

A worthwhile investment

R99.00

R49.50
per month x 24

After 24 months, service will automatically continue on a month-to-month basis. Cancel at any time (fees may apply if within 24 months). Your subscription will only begin 1 month after you’ve ordered your HotBot.

See our Smart Hot Water Agreement (SHoWA).

Choose an installation option

HotBot™
STANDARD

Includes HotBot installation and service.

R200
once-off activation fee

Choose HotBot standard

HotBot™
+ OPTIONAL SHUT-OFF VALVE

Automatically closes water supply to your water heater if HotBot detects a leak, preventing a burst from damaging your home.

R1,200
once-off activation fee

Choose HotBot + shut-off valve
Water-heater timers vs HotBot™
Water-heater timers Hot
Bot™
Smart savings
Track savings in real-time
Save even when you’re on vacation
Get personalised insights and tips to save more
Intuitive control
Control your water heater from anywhere
AI-optimised hot water schedule
Check your hot water temperature in real-time
Easily change setpoint temperature
Real-time protection
Detect leaks, broken thermostat, elements and more
Monitor performance of your water heater
Get alerted when things go wrong

Offered by a limited set of internet-connected timer models

Get HotBot now

Is HotBot™ right for me?

HotBot for medium to high usage households

If you spend more than R1,000 per month on electricity you will benefit the most from HotBot savings.

HotBot for low usage households

If you only use a small amount of hot water, HotBot may not fully pay for itself – but it will still provide powerful control and protection of your water heater. Detecting a leak in time can save you from wasting electricity and from damage to your home.

Control your water heater from anywhere

Users who love HotBot™

Commonly asked questions

What is Project Smart Geyser?2022-05-17T17:48:57+02:00

Project Smart Geyser is paying the discount on your subscription to get HotBot technology out there in order to prove how it can fix loadshedding and enable more solar. This project brings together partners, including EEP Africa, the City of Cape Town and GIZ, to improve energy reliability and efficiency in South Africa. By getting a HotBot, you’ll be part of a groundbreaking project that shows how Cape Town is at the forefront of creating a clean energy future.

Which water heaters is HotBot compatible with?2022-05-17T17:48:57+02:00

HotBot is compatible with all electric water heaters and solar water heaters where the tank is on the roof (thermosyphon systems). It is not intended for gas, pumped solar thermal (where the tank is typically inside), low-pressure / push-through (typically seen in RDP houses), or heat pump water heaters.

The water heater must be accessible to a technician for installation. In order for leak detection and the optional shut-off valve to work, you must have a drip tray and your water heater must be installed inside.

How does installation work?2022-05-17T17:48:57+02:00

After you subscribe for HotBot you will receive a link to book a convenient installation time. Our partners at TOD will send a HotBot-accredited technician to do the rest.

Where is HotBot installed?2022-05-17T17:48:58+02:00

HotBot is a small Internet of Things device (17cm x 15xm x 6cm) that is installed adjacent to your existing water heater. The power to your water heater is run through HotBot, and it has several sensors which attach to your hot water system.

What should I do if I have a timer on my water heater?2022-05-17T17:48:58+02:00

Make sure to remove or bypass any timers or other water heater controllers, and rather manage your hot water through the app at my.plentify.io.

What if my hot water system is non-compliant with regulations?2022-05-17T17:48:58+02:00

HotBot still works with water heaters despite most non-compliance issues. Depending on the nature of the non-compliance, certain features may not work. For example, some hot water systems allow valves to drain into the drip tray instead of being directed outside with a pipe – in these cases it is not possible to distinguish between this and leaks. Our technicians will notify you of any compliance or other issues that they find with your water heater, and can assist in rectifying at your cost.

What happens after I subscribe for a HotBot through this website?2022-05-17T17:48:58+02:00

After you checkout, you will receive an email with a personalised link to book your installation. You simply select a convenient date and time for the installation, and our accredited plumbers will arrive with the device and install it for you. Once HotBot is installed you can register on our Plentify app and start saving! You will be charged the subscription fee each month, starting 1 month after you have ordered your HotBot.

Will I have hot water when I need it?2022-05-18T11:06:46+02:00

Definitely! HotBot is designed to ensure that you have hot water when you need it and save you money when you don’t. The system pre-heats your hot water so you always have hot water at scheduled times. If you forgot to schedule a time, you can always manually override in the app to start heating your water immediately.

How much will I save?2022-05-17T17:48:59+02:00

Our users save up to 30% of their water heating costs compared to leaving water heaters on 24/7, with most saving 15-20%, and some less. This is about double the savings you can expect with a simple timer or by manually switching your water heater at the distribution board. Actual savings depends on many factors – most notably how well insulated your hot water system is, and how much hot water you use relative to your tank size.

How does my HotBot help fix loadshedding and enable more solar?2022-05-17T17:48:59+02:00

Demand for electricity is not flat, rather it peaks in the mornings and the evenings. Our electricity grid struggles the most during these peak periods, when available electricity supply often falls short of demand and Eskom burns a lot of diesel to try to keep the lights on. Often they simply can’t keep up, or need to save the diesel to serve other times of the day – leading to loadshedding

Solar by itself is not the answer as it produces most energy during the middle of the day, and does very little to address our peak problem.

HotBot solves both of these problems. Your HotBot can coordinate with all other HotBots to intelligently shift energy demand away from times when Eskom is burning diesel or we’re at greatest risk of loadshedding, and towards times when more solar energy is available – while making sure that you have hot water when you want it.

Is there an app for my phone or tablet?2022-05-17T17:48:59+02:00

You can manage your water heater from any device using the web app at my.plentify.io.

Can I cancel? What if I move house?2022-05-19T11:17:53+02:00

The initial subscription term is 24 months from installation. Thereafter, the service continues on a month to month basis, and you can cancel anytime with 1 month notice.

If you want to cancel within the initial 24 month term, you will be liable for a R1,700 cancellation fee, to cover the cost of installation, removal and refurbishment. If you move house within this period, you can also either have us relocate your HotBot (for a fee to be quoted at the time), or have the new residents take over your contract (in which case the cancellation fee will be waived).

Should I turn my water heater on and off at the distribution board?2022-05-17T17:48:59+02:00

Avoid switching your water heater on and off at the distribution board. This can reduce energy savings and prevent leaks and other issues from being detected. Instead, manage your water heater from the app at my.plentify.io.

What should I do when I leave town?2022-05-17T17:49:00+02:00

Set your HotBot to vacation mode to save money and energy when you’re away from home. Do this from the “Status” tab of the app.

How will I be notified if there is an issue with my water heater?2022-05-17T17:49:00+02:00

You’ll receive an SMS letting you know if we’ve identified any issues or suspected leaks with your water heater. If you purchased the optional shut-off valve, your water supply will automatically be shut off, and you can reopen it from the app at my.plentify.io.

Need help?

Get in touch

Will you join the movement?

Plentify’s efforts have earned the recognition, trust, and support of several leading global organisations. Join us in creating the energy system that the world needs.

  • 2017

    Echoing Green

    World’s leading angel investor in social impact startups.

    Plentify’s relationship: Fellow

    Find out more

  • 2017

    Tamer Fund

    The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.

    Plentify’s relationship: Grant recipient

    Find out more

  • 2018

    The African Entrepreneurship Award

    Africa’s largest, private sector award focused on helping businesses that use technology.

    Plentify’s relationship: Winner

    Find out more

  • 2019

    EDF

    One of the world’s largest utilities and renewable energy producers. Pulse is their annual energy innovation competition.

    Plentify’s relationship
    Finalist: UK, 2020  
    Winner, Southern Africa 2019

    Find out more

  • 2020

    GIZ

    The GIZ implements the South African German Energy Programme (SAGEN), in conjunction with the DMRE, SALGA, Eskom and the National Treasury.

    Plentify’s relationship: Partner

    Find out more

  • 2020

    City of Cape Town

    Second-largest economic centre in South Africa, contributing 10% of the national GDP and home to 4 million residents.

    Plentify’s relationship: Project partner

  • 2021

    World Alliance for Efficient Solutions

    Non-profit organisation launched at the Bonn Climate Conference to bring together the main actors in the field of clean technologies

    Plentify’s relationship: Member

  • 2021

    The Diamond List

    The Diamond List is an exclusive and global group of game-changing climate ventures deemed investment-ready and poised for impact.

    Plentify’s relationship: Portfolio company

  • 2021

    CSIR

    The Council for Scientific and Industrial Research is South Africa’s premier scientific R&D organisation, and the largest R&D organisation in Africa.

    Plentify’s relationship: Partner

  • 2021

    EEP

    The Energy and Environment Partnership Trust Fund (EEP) is managed by the Nordic Development Fund and provides financing to innovative clean energy projects and technologies.

    Plentify’s relationship: Portfolio company

    Find out more

  •  
  • 2017
  • 2017
  • 2018
  • 2019
  • 2020
  • 2020
  • 2021
  • 2021
  • 2021
  • 2021
  • Echoing Green

    World’s leading angel investor in social impact startups.

    Plentify’s relationship: Fellow

    Find out more

  • Tamer Fund

    The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.

    Plentify’s relationship: Grant recipient

    Find out more

  • The African Entrepreneurship Award

    Africa’s largest, private sector award focused on helping businesses that use technology.

    Plentify’s relationship: Winner

    Find out more

  • EDF

    One of the world’s largest utilities and renewable energy producers. Pulse is their annual energy innovation competition.

    Plentify’s relationship
    Finalist: UK, 2020  
    Winner, Southern Africa 2019

    Find out more

  • GIZ

    The GIZ implements the South African German Energy Programme (SAGEN), in conjunction with the DMRE, SALGA, Eskom and the National Treasury.

    Plentify’s relationship: Partner

    Find out more

  • City of Cape Town

    Second-largest economic centre in South Africa, contributing 10% of the national GDP and home to 4 million residents.

    Plentify’s relationship: Project partner

  • World Alliance for Efficient Solutions

    Non-profit organisation launched at the Bonn Climate Conference to bring together the main actors in the field of clean technologies

    Plentify’s relationship: Member

  • The Diamond List

    The Diamond List is an exclusive and global group of game-changing climate ventures deemed investment-ready and poised for impact.

    Plentify’s relationship: Portfolio company

  • CSIR

    The Council for Scientific and Industrial Research is South Africa’s premier scientific R&D organisation, and the largest R&D organisation in Africa.

    Plentify’s relationship: Partner

  • EEP

    The Energy and Environment Partnership Trust Fund (EEP) is managed by the Nordic Development Fund and provides financing to innovative clean energy projects and technologies.

    Plentify’s relationship: Portfolio company

    Find out more

Go to Top