Heat Pump vs Condenser Dryer: Which Is Best?
There are three main options to consider when selecting tumble dryers for your clothes that cut across all brands: vented tumble dryers, heat pump tumble dryers, and condenser tumble dryers. The difference stems from how they handle the water removed from your clothes.
Vented Tumble Dryer
A vented tumble dryer releases the moisture it has removed from your clothes outside through a vent. They have provisions for hoses to help in this process which might require professional installation if the moisture is going out through a wall.
While you will get some of the cheapest dryer models in this category, a vented dryer is the least efficient dryer out of the three in terms of energy consumption. Additionally, running them is very expensive. This is why we shall be giving them a wide berth onwards in this article.
Condenser Tumble Dryer
A condenser tumble dyer stores the moisture it removes from your clothes in removable tanks. They are a great option when you cannot vent the moisture outside but still require a tank that should be emptied after every drying cycle.
They are more efficient than vented tumble dryers, but their drying times are longer because the circulating air retains some moisture going into the next cycle. The longer drying cycle slightly diffuses efficiency gains, so their overall maintenance costs remain higher than heat pump tumble dryers. Yearly operation costs range from £60 to £80.
Heat Pump Tumble Dryers
Heat pump tumble dryers are an advancement of the technology behind condensing dryers. The circulating air is taken through an extra drying process, making it dryer and less saturated when repeatedly blown through the tumbling clothes. This allows the drying process to work with fewer resources and is responsible for its higher efficiency rating. Running them is much cheaper, with an estimated yearly cost of between £30 and £40.
How Does a Tumble Dryer Work?
To fully grasp the differences between these dryers, you need to understand the underlying mechanisms that go into drying your clothes. The process is simple and straightforward:
- Tumble dryers have motors that rotate or tumble their drums and the clothes inside them
- They also have heaters that heat the air inside the drums where the clothes are
- A fan blows the heated air across the tumbling clothes, hastening the water evaporation process
- The humidity in the air is then somehow vented out, to be replaced by room temperature air
- This cycle continues until the clothes attain the desired level of dryness
Heat Pump vs Condenser Dryer: What Is the Actual Difference?
Condenser dryers rely on a heat exchanger, also known as a condenser, to remove moisture from the air inside the drum. The moisture is discharged down a drainpipe while the hot air is recirculated. The drying times are longer because the recycled air retains some moisture. They are, however, still faster than heat pump dryers.
Heat pump dryers have a secondary heat exchanger on top of the condenser, referred to as the evaporator. This cools the heated air further and forces more moisture to separate from it before the air is recirculated.
This extra dryness means the air is less saturated with water and will not reintroduce dampness to the clothes but absorb even more moisture. Therefore, the clothes require fewer cycles to reach the dryness level you desire. This is energy-efficient and sustainable.
Heat Pump vs Condenser Dryer: Their Shared Benefits
They both lower energy consumption; the concept of recycled air means they don’t have to apply a lot of energy to pump air into the drum, and there is no loss of heat courtesy of letting in the fresh air.
Neither option requires a vent to release the moisture while drying is in progress, allowing unlimited placement options. The units can be fitted anywhere you deem convenient without incurring extra plumbing costs. They can also be connected to a vent when there is a provision; this makes their application inside and out of the house very versatile.
Advantages of a Heat Pump Over a Condenser Dryer
- The energy consumption is more efficient, which significantly reduces the operational costs
- Your laundry is kept in better shape thanks to the low drying heat of the heat pump. The dryer works with a coolant which helps to separate moisture from the air. The lower temperature is gentle on your laundry, and there will be minimal wear and tear
- The regulated conditions allow these dryers to last longer with fewer service requirements than condenser dryers
Advantages of a Condenser Dryer Over a Heat Pump
- It has a lower purchase price and can be afforded on a tighter budget
- It takes a shorter time to dry clothes than a heat pump dryer
- It is quieter than a heat pump in operation
What Features Should I Look for When Selecting a Tumble Dryer?
Apart from the few differences we mentioned earlier, heat pump and condenser dryers work in a similar fashion following the same underlying logic. Because the technologies are identical, the specific features to watch out for will also be similar.
We have already seen how the drum size relates to the family size. Go for a size that is sufficient for your needs and lifestyle.
Tumble drying can be very loud, enough to interfere with your neighbors’ peace of mind. A decent dryer has mechanisms to control noise or is compatible with noise control accessories.
This is a feature some tumble dryers have which ensures your clothes dry evenly and reduces creasing while drying. The drum rotates both clockwise and anticlockwise with several pauses in between. It reduces chances of clothes bunching up or tangling with each other.
Multiple Dry Settings
This feature enables you to customize the dryer to fit the clothes that are inside. Some clothes dry up faster than others and might be damaged by excessive exposure to heat. There is also the question of saving energy and you don’t want to waste it when it is not necessary.
Auto Sensing Technology
This allows you to set up the dryer to stop automatically once you the clothes are sufficiently dry. Smart algorithms enable the dryer to detect when you reach this point.
Conclusion: Which Is Best?
Both a condenser dryer and a heat pump dryer are made to dry clothes effectively. The heat pump drier is better for energy efficiency as it needs less fuel to dry the same load of clothes as a condenser dryer. However, the enhanced efficiency comes at a premium as it costs more to execute. Your budget and washing patterns will determine if it is worth the extra change.
They score the same in practicality and usability because they both don’t need to be deployed near an outlet to drain the water. The water can be drained in between cycles, and you have more control over its disposal.
A heat pump dryer is the better option if your resources allow you to indulge. You will be paying for convenience and durability. The extra amount in the initial cost will be recovered from energy efficiency, and you will break even soon enough.
How do I use my tumble dryer efficiently?
Operating costs have a larger impact on the investment cost than the actual cost of purchase of the dryer. A few common-sense tricks will enable you to maximize the return on your investment.
Keep the laundry cost down by doing it once a week. It is less work and greatly reduces your drying time. This translates to lower energy bills and more change in your pockets.
How can I tell which size tumble dryer is sufficient for my household?
This question has no right or wrong answer; the ideal size is dependent on several demographic considerations. These include the age of the household members, the kind of activities they engage in, how many they are and how often they do their laundry.
Our ballpark estimations are as follows; a 4 to 6 kg drum should suffice for a household of 2, up to 4 members should be accommodated by a 7 to 8 kg drum, and anything above this warrants 9 kgs and above.