We’re all renewable experts here at Hero. If you can’t find the answer to your question below, feel free to get in touch!

  • General Questions

    What Is Renewable Energy?
    ARenewable energy is widely regarded as any energy that is derived from resources that are sustainable on a human timescale, such as solar, wind, rain, tides, waves and geothermal heat. However, small scale renewable energy installations use microgeneration technologies such as heat pumps, biomass and solar.
    Is Renewable Energy Right For Me?
    AIn some cases, the numbers just do not add up to install a renewable energy system in your property. If this is ever the case, we will decline to go ahead and let you know the best way to go forward with your project.
    What Is A Technical Survey?
    AA technical survey is conducted by our in-house surveyor, he would assess your property to get a true evaluation on the heat demand, insulation and property size. This then enables him to determinate the most efficient heating system for your property, they can answer any questions you may have on site.
    What is a manifold?
    AThe manifolds can be used in underfloor heating etc. It acts as the hub of a heating system, connecting the supply and return lines in a central place. It controls the flow of water through the system to provide an even, comfortable temperature across the whole floor.
    Why Doesn’t Everyone Have Renewable Energy?
    AA vast amount of the general public are still blissfully unaware of the potential benefits of renewable energy. With fossil fuel alternatives being much more widely accessible it is quicker and easier (but not smarter) to go with conventional LPG or Oil boilers.
    What Is The Customer Complaints Procedure?
    AIf you are looking to make a customer complaint, please click here.
    Are You Looking For A Career With Hero Renewables?
    AOur job adverts are posted on Indeed, but you can send your CV to careers@herorenewables.co.uk

    Our positions are open to candidates only and we do not work with recruitment agencies, please click here for more.

  • Heat Pumps

    How Long Do Heat Pumps Last?
    AGenerally, the average lifespan of a heat pump is approximately 20 years. It could depend on several things, such as the type of heat pump you have, your location, and how well the heat pump is maintained. However, individual units of the system may vary and last much longer depending on the use. For example, the ground heat exchanger, the more expensive part of a GSHP installation, should have a lifespan of over 100 years!
  • Air Source Heat Pump

    What Are The Size Ranges Of The Product’s?
    A The Ecodan R32 Ultra Quiet has a 6kW, 8.5kW and 11.2kW system. Additionally, we also offer the Ecodan R32 5kW Compact and 14kW Zubadan Heat Pump for small or large domestic homes and properties. Where as, our MasterTherm Boxair Heat pump which is used for large-scale properties, ranges up to 22kW on single-phase and up to 35kW on a three-phase electrical supply.
    Do Air Source Heat Pumps Work In The Cold?
    AOur Air source heat pumps work with temperatures as low as -20°C, but losing efficiency the colder it gets, however you will not notice any changes in your home.
    Are Air Source Heat Pumps Noisy?
    AAir source heat pumps produce a very stilled humming noise, equivalent to the sound of a standard light conversation or a refrigerator.

    From outside the property, air source heat pumps are generally no louder than average background noise and unless sited near an open bedroom window they cannot be heard from indoors. Rest assured that sound checks are a legal requirement when our team install a heat pump system,  which eliminates any future complications.

    How Efficient Are Air Source Heat Pumps?
    AIn terms of efficiency on an air source heat pump, they are only beaten on running costs to a Ground Source Heat Pump, as air temperature fluctuates seasonally. A typical air source heat pump runs at a Coefficient Of Performance (COP) 3.2 when the outside temperature is above 7°C. This means that the heat pump is 320% efficient: for each kWh of electricity used by the fans and the compressor, 3.2 kWh of heat is generated. The higher the COP, the better.
    How Much Space Is Needed?
    AAn Air Source Heat Pump is ideal for people who may not have the space for a Ground Source Heat Pump. This is because Air source heat pumps take up less space to install than an oil or LPG tank, especially when no buffer tank is required. But, for a typical ASHP outside installation, you will need a space with plenty of clearance for air flow. The unit does not need to be positioned immediately adjacent to the building.
  • Ground Source Heat Pump

    Why Are GSHP’s More Expensive Than ASHP’s?
    AGSHPs are more expensive to install because of the need to install a ground heat exchanger. The heat pump uses a mixture of water and antifreeze which circulates continuously around a ground loop. The heat from the ground is absorbed into the water and antifreeze mixture and then passes through a heat exchanger into the heat pump. This connection to the ground is what enables a GSHP to perform much more efficiently than an ASHP.
    Does A GSHP Go In The Ground?
    AThe GSHP unit itself will be situated inside your property, but the heat pump uses a number of pipes buried in the ground in order to allow it to collect the heat.
    How Much Groundwork Is Required?
    AThere are two possible methods to take when installing a ground source heat pump. The most common method is using horizontal ground loops (slinkies) which are sized in proportion with your heat pump, pipes are then laid 1.2-1.4m into the ground, therefore ground space will be required to use this method. Alternatively, it is possible to transfer heat using a borehole method, typically around 100m in depth, which is a highly efficient method and requires very little ground space.
    How Efficient Is A Ground Source Heat Pump System?
    AThe majority of our Ground source heat pumps come with inverter driven technology as standard which means only the energy required to meet the actual demand is supplied. Also, for every unit of electricity required to run one of our GSHP’s you get four kwh’s back, making it an incredibly efficient way to heat your home.
    Are Ground Source Heat Pump Systems Suitable For New-Builds?
    AGround Source Heat Pumps work fantastically with new builds and getting Hero Renewables involved in your project as early as possible is highly recommended. Not only are new builds finished to a high specification perfectly suited for ground source heating, they are also subject to 0% VAT on renewable technologies. With the added efficiency of high insulation, and the opportunity for underfloor heating, we believe every new home should realise the benefits of GSHP’s.
  • Biomass Boilers

    What Is Biomass?
    ABiomass energy refers to all biologically produced matter from living or recently living organisms. Modern day biomass heating usually refers to the burning of pellets, chips or logs. Biomass boilers are actually very simple systems and work very similar to that of conventional fossil fuel burning boilers.
    Is Biomass A Sustainable Form Of Heating?
    AThe burning of biomass fuel is part of a closed carbon cycle, meaning that the carbon taken from the atmosphere in order for the trees to grow, which creates a replenish-able cycle when the fuel is burnt. All biomass suppliers must be registered to the biomass suppliers list which ensures sustainability procedures are being followed.
    Where Do I Buy My Biomass Fuel?
    AWe will recommend you only purchase your fuel from a local company listed on the biomass suppliers list.
  • Solar Photovoltaic

    I Have Big Trees That Shade Some Of My Roof, Will Solar PV Work?
    AUnfortunately, trees and solar panels don’t pair together very well. Trees can block sunlight from hitting your solar panels, which can substantially reduce their performance and energy production. Nevertheless, you don’t need to dismiss the idea of using solar panels. In most cases, you can get away with removing a few branches or trimming your trees.
    Can I Have Solar PV On A Flat Roof?
    AYes, you can have solar panels installed on the flat roof of your home or business. However, all domestic flat roof solar installations require planning permission, whereas pitched roof installations are generally covered under ‘permitted development’.
    What Does A ‘South Facing Roof” Mean?
    AA roof that is facing south of the sun, enabling you to get the most out of your solar panels. This is because south facing 35° pitch is the ideal scenario of the UK, although an east facing roof with a 20° slop will only lose around 15% sunlight.
    Do Solar Panels Need Cleaning?
    AWe don’t recommend you wash your system more than once a year, nature will usually take its course and do it for you, however if you are worried, there are plenty of professionals that are trained to clean solar panels.
    Will I Qualify For Export Tariffs?
    AAs of January 2020, electricity suppliers within the UK with more than 150,000 customers will be obligated to offer export tariffs to those generating surplus energy through their solar panels, though some energy suppliers, such as Octopus, OVO Energy and British Gas.
    How Much Money Can I Save?
    AOnce you install solar panels, you can get paid for generating and exporting solar energy, as well as reducing your energy bills by up to 50%. Electricity rates are only expected to continue growing, and a renewable energy source means that you will be able to avoid an annual energy price rise of around 10% a year.
    How Long Do Solar Panels Last?
    ASolar panels have a lifespan of approximately 25 years. However, this doesn’t mean that they stop producing electricity after 25 years, it just means the energy production can decrease a significant amount. Solar panels can continue to work for many years, given they aren’t physically damaged by wind, debris etc.
  • Solar Thermal

    Can I Use My Solar Thermal System For Other Purposes, Such As A Swimming Pool?
    AYes! In fact, we recommend solar thermal systems to do just that, they are able to heat the entire pool, which is a very effective way to reduce the running costs.
    Will My Solar Thermal System Still Work In The Winter?
    AThere are many variables that determine how much energy your panels produce, cloudiness does effect efficiency, but as long as the sun is shining; water temperatures will be raised all year round.
  • MVHR

    What is A Mechanical Ventilation Heating Recovery System?
    AMechanical Ventilation with Heat Recovery, it is a system that constantly extracts moist, stale and polluted air from the wet rooms of a property, such as bathrooms and kitchens. The air is passed to a heat exchange cell which recovers and retains the heat that would otherwise be lost from extracting the air. This heat is then transferred back from fresh, filtered air that the unit is resupplying back into rooms such as bedrooms, living rooms. Resulting in minimal heat loss and a more comfortable indoor environment.
    What Is The Annual Running Cost?
    AThe average annual running cost of an MVHR system comes in at around £30-40. Overall the system will save money annually with the reduction on heating bills achieved by controlling the air change rate in the property and effective heat recovery to maintain the air temperature.
    Are The Systems Noisy
    AMVHR systems are designed to be almost silent in normal operation. During boost operation there may be audible noise at the vents in the rooms or close to the location of the main unit but boost operation will typically only be necessary whilst showers or baths are in use.
  • Battery Storage

    What Is Battery Storage?
    ABattery storage systems store the solar electricity generated in the day and this can be used in evenings and overnight to further reduce your reliance on the grid and save you more money. Typically, householders without a battery storage system use up to 30% of generated electricity from solar panels with the rest going to the national grid, with a battery storage system you could turn this around and use 75% of solar electricity generated with the smaller 25% then only going to the grid, meaning that energy harvested from the sun is now wasted.
    What Is The Warranty For Battery Systems?
    AAt Hero Renewables, we supply the sonnenBatterie which comes with a market-leading warranty of 10 years or 10,000 charge cycles, and a battery service life of 20 years. The performance guarantee states that the battery will be not less than 70% of its installed capacity after 10,000 cycles.
  • Renewable Heat Incentive

    What Is The RHI?
    AThe Renewable Heat Incentive is a government scheme in England, Scotland and Wales, to promote the use of renewable heat. Switching to heating systems that use eligible energy sources can help the UK reduce its carbon emissions and meet its renewable energy targets. People who join the scheme and stick to its rules, receive quarterly payments for a number of years (the number of years depends on whether your project is domestic or commercial). This incentive is due to end on the 31st March 2022.
  • Boiler Upgrade Scheme

    What Is The Boiler Upgrade Scheme?
    AHomeowners in England and Wales will be offered subsidies of £5,000 from April 2022 to help them to replace old gas boilers with low carbon heat pumps. The grants are part of the government’s £3.9bn plan to reduce carbon emissions from heating homes and other buildings.
    What Improvement Can I Get Installed?
    AThe Government has stated that at the current time, the grants will be offer for low carbon heating measures, such as air, ground and water heat pumps. At Hero Renewables we offer Low-Carbon heating systems such as air and ground source heat pumps, solar thermal and biomass boilers.