Meet Rosie, inspired by our very own Cosy heat pump

General

These Terms and Conditions apply to the “Rosie the Cosy Heat Pump Week” offer (“The Offer”).

The Offer:

• Existing Octopus Energy Heat Pump Customers will receive a code to claim one free “Rose the Cosy” plushie via the Octopus Energy online shop (URL: https://shoptopus.energy/collections/shop-the-merch) during the Offer Period.
• New Customers who place an order (pay a deposit) for an Octopus Energy heat pump or sign an Octopus Heat Pump Installation Agreement during the Offer Period will also receive a code for one free Rosie the Cosy plushie via the online shop.

Offer Period:
29th September 2025 – 5th October 2025 (inclusive).

Eligibility:

• The Offer is available to domestic customers in England and Wales.
• Existing Octopus Energy Heat Pump Customers are customers who have had an Octopus Energy heat pump installed prior to the start of the Offer Period.
• New Customers are customers who place an order (pay a deposit) for an Octopus Energy heat pump or sign an Octopus Heat Pump Installation Agreement during the Offer Period.
• Only one Rosie the Cosy plushie will be provided per customer.
• Rosie the Cosy plushies are only available to be sent within the UK.

Further Terms:

• Rosie the Cosy plushies are available while stocks last.
• Delivery of the plushie will take place within 60 days of successful redemption via the online shop.
• The Offer is non-exchangeable, non-transferable, and no cash alternative is available for the plushie.
• Octopus Energy reserves the right to substitute the plushie with an alternative gift of equal or greater value if circumstances beyond our control make it necessary.
• This Offer cannot be used in conjunction with any other promotional offer unless expressly stated by Octopus Energy.
• Octopus Energy reserves the right to amend or withdraw this Offer at any time.
• By entering the social media prize draw, participants agree to allow Octopus Energy to use their post (or a version of it) for promotional purposes.
• Further terms and conditions apply.

Promoter:
Octopus Energy Limited, UK.

Heat pumps are 4 x more efficient than a gas boiler

Heat pumps can deliver several units of heat for each unit of electricity. For every 1 kWh of electricity you put in, you could get an average of 3.3kWh heat out, which is an efficiency of 330%! This is because heat pumps don't create heat, but move existing heat from nature into your home (like an air conditioner or refrigerator, but in reverse). Alternatively, when you burn stuff to generate heat (like gas, oil, or wood), you are instead creating heat by converting matter to energy - so you can never get more than one unit of heat for each unit of energy you burn. Gas boilers in UK homes are only around 85% efficient, so for every 1 kWh of gas you put in, you get around 0.85kWh of heat out, which is nearly 4x less efficient than a heat pump (3.3/0.85 = 3.9).

These are typical install efficiencies for gas boilers and low temperature heat pumps installed in real homes (like Cosy Eco). See our heat pump savings blog for the full set of calculations and assumptions.

By switching to a Cosy heat pump, customers can save up to £300 a year compared to a gas boiler.

We expect a medium use home to save around £300 a year, running a high temperature heat pump on our Cosy Octopus 12 month fixed tariff with no gas supply, compared to a gas boiler on a standard tariff. See the our heat pump savings blog for full details and calculations

Our Rosie the Cosy plushie is made out of recycled materials

Made from 100% recycled fabric and filling

Our Cosy heat pump provides reliable, energy-efficient heating

Heat pumps can deliver several units of heat for each unit of electricity. For every 1 kWh of electricity you put in, you could get an average of 3.3kWh heat out, which is an efficiency of 330%! This is because heat pumps don't create heat, but move existing heat from nature into your home (like an air conditioner or refrigerator, but in reverse). Alternatively, when you burn stuff to generate heat (like gas, oil, or wood), you are instead creating heat by converting matter to energy - so you can never get more than one unit of heat for each unit of energy you burn. Gas boilers in UK homes are only around 85% efficient, so for every 1 kWh of gas you put in, you get around 0.85kWh of heat out, which is nearly 4x less efficient than a heat pump (3.3/0.85 = 3.9).

These are typical install efficiencies for gas boilers and low temperature heat pumps installed in real homes (like Cosy Eco). See our heat pump savings blog for the full set of calculations and assumptions.

Our Cosy heat pump can help reduce your carbon footprint

Cut carbon emissions by around 80% with a heat pump:

This is the typical reduction in heating carbon emissions using an electric powered heat pump compared to a gas boiler, based on the following calculation:

Gas CO2 = (A*D) = 2.42 tonnes per year

Electricity CO2 = (A/B*C*E) = 0.40 tonnes per year

Carbon saving = 2.01 tonnes or 83%

Where A - E are:

A - 11,500 Ofgem medium gas usage

B - 330% typical seasonal coefficient of performance from a fleet of Octopus low temperature heat pumps

C - 85% typical gas boiler efficiency from a BEIS study

D - Gas fuel emissions of 210 gCO2/kWh (SAP 10.2)

E - Electricity fuel emissions of 136 gCO2/kWh (SAP 10.2)

These are typical install efficiencies for gas boilers and low temperature heat pumps installed in real homes (like Cosy Eco). See our heat pump savings blog for the full set of calculations and assumptions.