
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.
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.
A worthwhile investment
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
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.
Users who love HotBot™
Commonly asked questions
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.
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2017
Echoing Green
World’s leading angel investor in social impact startups.
Plentify’s relationship: Fellow
-
2017
Tamer Fund
The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.
Plentify’s relationship: Grant recipient
-
2018
The African Entrepreneurship Award
Africa’s largest, private sector award focused on helping businesses that use technology.
Plentify’s relationship: Winner
-
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 -
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
-
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
- 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
-
Tamer Fund
The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.
Plentify’s relationship: Grant recipient
-
The African Entrepreneurship Award
Africa’s largest, private sector award focused on helping businesses that use technology.
Plentify’s relationship: Winner
-
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 -
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
-
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