The Gerda Collection
Gerda Thermo Premium 75
Gerda residential doors
Gerda Thermo Premium 75 Entrance Doors
Thermo Premium 75 has a 75 mm door leaf with a thermal break (an insulating barrier that slows heat passing through the door) and an Alutherm 75 aluminium frame. It keeps the Gerda ZW 2000 main lock and second three bolt lock used on Optima 60, and lowers the U-value to 0.8 W/m²K for a solid door.
With 71 designs it has the widest choice in the collection: the Tempo and Elite 3D designs, plus the Quadro and Air Glass series. SteelR supplies and installs the range.
- Thermal performance (U-value)
- 0.8 W/m²K solid, 1.1 W/m²K glazed
- Burglary resistance
- RC2 or RC3 to EN 1627
- Door leaf
- 75 mm thick, with thermal break
- Frame
- Alutherm 75 aluminium, 77 mm
- Width
- 840 to 1130 mm
- Height
- 1950 to 2200 mm
The RC grade (2 or 3 under EN 1627) depends on door size and design. Gerda offers RC3 as a package on solid doors, so the grade is confirmed for your chosen design at quotation. Heights exclude the 27 mm sill and any extensions, and include the low threshold. Sizes are made in 10 mm increments; the available width and height depend on the design and colour.
How it is built
A 75 mm leaf with a thermal break and four sided rebate
The Thermo Premium 75 specification, as set out in the UK range brochure. The doors are made at Gerda's plant in Starachowice, Poland.
- Leaf construction
- A metal faced leaf, 75 mm thick, on a timber inner frame with an expanded graphite polystyrene core and a thermal break.
- Main lock
- A 3-bolt class 7 Gerda ZW 2000 main lock.
- Additional lock
- A 3-bolt class 6 Gerda ZW 500 additional lock, set above the main lock.
- Auxiliary lock and vertical bolt
- A 2-bolt auxiliary lock and an anti-burglary vertical bolt, both driven by the main lock.
- Cylinders and keys
- Class 6 lock cylinders on a single key system, so one key operates both the main and additional lock.
- Hinges
- Adjustable in three planes, with caps that match the hardware colour, and three hinge guards on the hinge side.
- Leaf and frame
- A door leaf with a thermal break in an Alutherm 75 aluminium frame. The door is rebated on four sides, meaning leaf and frame overlap in a stepped edge. An adjustable keep, the plate the lock engages in the frame, sets how firmly the leaf closes against the seals.
- Threshold and weather seal
- A low aluminium threshold with a thermal break, and a bottom weather seal on the leaf.
Door designs
71 designs in the Thermo Premium 75 range
Each design is shown as Gerda illustrates it. Colours and hardware in the pictures are examples: any design can be ordered in any colour its size allows.
Tempo
Width 840 to 1130 mm · Height 1950 to 2200 mm
Flat contemporary leaves with stainless or black insert strips, slim glazed panels and long bar handles. Milano, Hanover and Innsbruck carry the design on both faces as standard.
Hanover 5 B
Ref NS5B
Hanover 6
Ref NS6
Innsbruck
Ref NS7
Milano 10
Ref NS3
Milano 11
Ref NS4
Milano 12
Ref NS9
Milano 12 B
Ref NS9B
Milano 8
Ref NS1
Milano 8 B
Ref NS1B
Milano 9
Ref NS2
Plain
Ref W00
Quadro
Width 840 to 1130 mm · Height 1950 to 2200 mm
Flush leaves divided by horizontal and vertical lines, many with square or full height glazing and contrasting colour blocks. The inside face is plain as standard. Kronach, Regen, Drezno and Erfurt can be ordered with the design on both faces as an option.
Bamberg 1
Ref KWF
Bamberg 2
Ref KWG
Bamberg 3
Ref KWH
Bamberg 4
Ref KWI
Dorfen
Ref KWS
Dorfen B
Ref KWSB
Drezno 1
Ref KPE
Drezno 2
Ref KPF
Drezno 2 B
Ref KPFB
Drezno 4
Ref KPH
Erfurt 1
Ref KPA
Erfurt 1 B
Ref KPAB
Erfurt 2
Ref KPB
Erfurt 3
Ref KPC
Jena 3
Ref KWE
Jena 4
Ref KW4
Kassel 1
Ref KWT
Kassel 2 B
Ref KWXB
Kronach 1
Ref KPN
Kronach 2
Ref KPP
Kronach 2 B
Ref KPPB
Kronach 3
Ref KPT
Kronach 4
Ref KPZ
Pasawa 1
Ref KWA
Pasawa 2
Ref KWB
Pasawa 3
Ref KWC
Pasawa 3 B
Ref KWCB
Pasawa 4
Ref KWD
Regen 1
Ref KPJ
Regen 2
Ref KPK
Regen 3
Ref KPL
Regen 4
Ref KPS
Regen 5
Ref KPM
Regen 6
Ref KPR
Regen 6 B
Ref KPRB
Trewir 1
Ref KWL
Trewir 2 B
Ref KWMB
Trewir 3
Ref KWN
Trewir 4
Ref KWP
Trewir 7
Ref KW7
Ulm 1
Ref KWJ
Ulm 1 B
Ref KWJB
Ulm 2
Ref KWK
Air Glass
Width 840 to 1130 mm (Villach 1030 to 1130 mm) · Height 2087 mm fixed (Villach 1950 to 2200 mm)
Designs built around a tall glass panel set into the leaf. Air Glass doors are made at a fixed height of 2087 mm without a sill. The two Villach designs are the exception: they are made in a range of heights and need a width of 1030 to 1130 mm.
Graz 1
Ref AGE
Graz 2
Ref AGF
Graz 3
Ref AGG
Graz 3 B
Ref AGGB
Linz 1
Ref AGB
Linz 2
Ref AGC
Linz 3
Ref AGD
Linz 3 B
Ref AGDB
Salzburg
Ref AGA
Villach
Ref AGH
Villach B
Ref AGHB
Elite 3D
Width 840 to 1130 mm · Height 1950 to 2200 mm
Panelled doors with raised decorative mouldings. The mouldings are thick aluminium profiles fixed to the leaf and finished in the leaf colour. The series includes the Hawkstone, a traditional four panel door with two glazed lights. Classic or modern moulding frames. The inside face is plain as standard, with the design on both faces as an option. The Hawkstone has the design on both faces as standard.
Berno
Ref ELE
Brig
Ref ELA
Hawkstone
Olten
Ref ELB
Trin
Ref ELD
Visp
Ref ELC
Gallery
Thermo Premium 75 in place
Finishes
Thermo Premium 75 colours
Thirteen standard colours and woodgrains. The tallest door available depends on the colour chosen.
| Colour | Ref | Max door height |
|---|---|---|
| White | FSB | 2200 mm |
| Steel Grey | FKZ | 2100 mm |
| Anthracite | FKG | 2200 mm |
| Dark Anthracite | FKF | 2200 mm |
| Black | FKC | 2100 mm |
| Alpine Walnut | FRR | 2100 mm |
| Mahogany | FMA | 2087 mm |
| Brazilian Walnut | FRB | 2100 mm |
| Light Walnut | FRP | 2200 mm |
| Golden Oak | FDE | 2200 mm |
| Winchester | FDW | 2200 mm |
| Turner Oak | FDT | 2087 mm |
| Light Wenge | FEJ | 2100 mm |
Also available: Black Matt, Silk Anthracite, Red, Pistachio, Light Blue, Light Green, Blue, Dark Green, Cobalt Blue, and the RAL colour range.
Options
Hardware, glass and access
Handle sets for Thermo Premium 75, followed by the options shared across the Gerda collection.
- Handle sets
- Bergen TD200, as handle both sides or knob outside and handle inside. An Amsterdam or Montreal handrail can replace the outside handle.
- Glass
- Clear, Matte, Reflex Graphite, Reflex Brown or Mira Star.
- Insert strips
- Black (RAL 9005) or brushed stainless steel.
- Hardware finishes
- Platinum, silver or black anodised. Brushed stainless steel is available on handrails.
- Handrails
- Amsterdam and Montreal pull bars in 1000, 1500, 1700 and 1800 mm lengths.
- Side lights and top lights
- Side lights 300 to 900 mm wide and 1950 to 2200 mm high. Top lights 840 to 2950 mm wide and 300 to 500 mm high. Both are made in 10 mm increments.
- Sills
- The sill sits under the frame on the outside. Four depths: 120, 150, 180 and 230 mm, with thermal compensation, finished in the door colour.
- Letterplates
- Platinum, silver or black anodised.
- Keys
- A two stage key system. Two installer keys operate the door during fitting. The first use of an owner key cancels them. Five owner keys arrive in a sealed bag with a code card.
- Smart lock
- A tedee smart lock with its bridge (a plug in unit that connects the lock to the internet) can be added, so the door can be locked, unlocked and checked from a phone. A keypad with PIN and fingerprint entry is also available.
Questions
Gerda Thermo Premium 75: common questions
What is the U-value of the Gerda Thermo Premium 75?
The range brochure gives a Ud of 0.8 W/m²K for a solid Thermo Premium 75 door and 1.1 W/m²K for a glazed one. Ud is the heat loss figure for the whole door, and a lower number means less heat lost.
What security rating does the Gerda Thermo Premium 75 have?
Thermo Premium 75 is rated RC2 or RC3 under the European burglary resistance standard EN 1627, depending on the door size and design. It has a 3-bolt class 7 Gerda ZW 2000 main lock, a 3-bolt class 6 Gerda ZW 500 additional lock, a 2-bolt auxiliary lock, an anti-burglary vertical bolt and three hinge guards.
What is the difference between Thermo Premium 75 and Thermo Prime 75?
Both have a 75 mm leaf with a thermal break in an Alutherm 75 frame. Thermo Premium 75 uses the Gerda ZW 2000 multi lock set and is rated RC2 or RC3. Thermo Prime 75 uses a 5-point mortise lock or a 3-point automatic lock, is rated RC2, has a slightly lower Ud of 0.79 W/m²K and can be made up to 2400 mm high in selected colours and designs.
What sizes does the Gerda Thermo Premium 75 come in?
Tempo, Quadro and Elite 3D designs are made from 840 to 1130 mm wide and 1950 to 2200 mm high, in 10 mm increments. Air Glass designs are made at a fixed height of 2087 mm, except the Villach designs, which are made 1950 to 2200 mm high and need a width of 1030 to 1130 mm. The maximum height also depends on the colour.
The rest of the collection
Other Gerda ranges
Gerda Optima 60
The 60 mm range, and the one with the widest choice of contemporary Tempo designs plus the traditional Classic panel doors.
Gerda Thermo Prime 75
U-values of 0.79 W/m²K solid and 0.9 W/m²K glazed, a choice of mortise or automatic locking, and heights up to 2400 mm in selected colours and designs.
SteelR bespoke collection
Made to measure steel entrance doors to your opening, in any RAL colour and at higher security ratings.
Gerda residential doors · Supplied and installed by SteelR
Enquire about Gerda Thermo Premium 75
Tell us which range and design you have in mind and we will call you back to talk through sizes, colours and options. There is no obligation. Supply and installation are by SteelR.