Low-energy beehives are intriguing, they raise questions, and sometimes they fascinate. This is normal: they change the rules of the beekeeping game. On this page, you will find clear and practical answers to understand how a low-energy beehive works, how to set one up, and why it can change your way of raising your bees. Useful reading, and a bit of well-placed warmth (in the hive, obviously).
Understanding the concept
🔹 What is a Low-Consumption Hive (RBC)?
The RBC limits heat loss and helps bees maintain a stable microclimate in the hive. It adopts the principles of passive insulation, while remaining simple and compatible with common beekeeping practices, both for amateurs and professionals.
🔹 What are the advantages of a low-energy hive?
Here's what you can expect from a CIBC:
- Less heat stress for bees
- Less consumption of honey or candy in winter
- A better spring laying restart
- More active and regular colonies
🛠 Design and compatibility
🔹 What materials are used?
We are reusing the existing floors and frame covers. This avoids waste and reduces costs. The insulating elements are simply added to the existing ones.
Is it compatible with my current hives?
Yes. This homemade solution adapts to all hive formats: Dadant, nucleus, Warré, Langstroth… and even more exotic formats. Nothing needs to be transformed, only completed.
Can an RBC be opened like a normal beehive?
Absolutely. All elements are removable and designed to allow you to handle your frames with ease, whether for health checks or harvests.
📈 Impact on colonies
Does that change the colony's dynamic?
Yes, and in a good way. By retaining heat better, the bees expend less energy and the colony remains calmer and more productive.
🔹 What is the cost compared to a classic hive?
The cost remains reasonable. Thanks to the reuse of existing equipment, you will quickly recoup the investment through a reduction in winter losses and a more regular colony.
🔹 Can a professional apiary be equipped?
Yes. The low-energy hive was designed by professional beekeepers for professional beekeepers, and it is also adopted by amateurs.
📏 Practical aspects and installation
🔹 How many frames can be made with one roll, in Dadant format?
Based on a standard roll (47cm x 50m):
- Doll: 146 units
- Socks: 127 units
- Scarf: 92 units
- Pihpgm: 77 units
These figures vary according to your cutting method.
What material should be used to fix RBC elements?
You can use tape, but it might peel off after two seasons. Staples are ideal: they last and don't damage the film, which is strong enough.
🧰 How the Low-Consumption Hive Elements Work
Hive body components
What is the scarf for?
The scarf is a thermo-reflective film placed above the frames. It reflects heat back towards the bees, which improves internal thermal comfort. Combined with a cushion, it forms an essential duo in the passive insulation of the hive.
🔹 What is the role of a handkerchief?
The shim is a square of heat-reflective film placed directly on the heads of the frames, between the hive body and the super. It conserves heat in chamber 1 without blocking access to the super.
🔹 What is the cushion's role?
The cushion replaces the frame cover. It is placed above the scarf, under the roof. Made from insulating materials (extruded polystyrene, wood fibre, etc.), it should be between 4 and 6 cm thick. Its role: to block heat loss from the top, a very sensitive area.
Floor and floor protection
🔹 What is a «shoe» and why is it important?
Placed between the floor and the hive body, the "shoe" limits air turbulence from below. It thus reduces heat loss and actively contributes to thermal stability. A cushion is essential to prevent undesirable thermal bridges and complete its effectiveness.
Should the shoe be insulated?
No. It is better not to insulate the hive floor. This creates a condensation zone underneath the hive, rather than inside, thereby limiting moisture in the brood chamber.
What is the difference between a sock and a shoe?
- The sock is a heat-reflective film placed on the shoe. It reflects heat upwards, towards the colony.
- The shoe acts as a shield against spurious air inlets and channels thermal flows. It primarily plays a mechanical role.
Internal thermal insulation
🔹 What does «pihpgm» mean?
The Pihpgm (partition isolée haute performance Guillemain Marc) is an insulating frame that replaces a traditional frame. Three are typically used per beehive:
- One on the bank of room 1
- One in the centre to adjust the brood size according to the seasons
- One on the chamber wall 2, which can also be replaced by a frame-feeder reflector. Each pihpgm consists of an insulator (extruded polystyrene or similar), covered with a heat-reflective film.
And the pippette, what is that?
The pihpette is the reduced version of the pihpgm. It is used in supers to facilitate the drying of nectar and its transformation into honey. It operates on the same principle: a lightweight insulator covered with a thermo-reflective film.
🔹 What is called room 1 and room 2?
- Room 1 is the area designated for brood. Its size can be adjusted using the frames according to the season.
- Room 2 is the food reserve. It changes based on the size of Room 1 and the needs of the colony.
Implementation and startup
Can a bee colony in a "RBC" hive be started with a single frame of brood?
Yes, in season. A brood frame with one or two food frames is sufficient to effectively start a colony in a well-insulated RBC setup.
🔹 Why is the frame feeder preferred over the rooftop feeder?
The frame feeder, positioned at the edge of chamber 2, can replace a pihpgm. Unlike the roof feeder, it does not create either a thermal bridge or a condensation zone above the cluster, which is crucial in winter.
🔹 When can a hive be switched to RBC?
The ideal is to install the system during the spring and autumn seasons, to avoid disturbing the colony. But if a hive is in trouble during winter, an emergency conversion can make all the difference. An RBC installed as a rescue measure is better than a lost colony.