Used Linde H80D-01/900 for sale (16,841)

Condition: used, functionality: fully functional, machine/vehicle number: H2X387J00413, Year of construction: 2018, operating hours: 4 h, load capacity: 3,500 kg, lifting height: 3,460 mm, free lift: 1,500 mm, fuel type: electric, mast type: duplex, construction height: 2,450 mm, drive type: Elektro, Electric 4-wheel forklift Chassis number: H2X387J00413 Hnedpfszkwuwex Ahzep Mast type: Duplex Condition: Ready for use and fully functional Technical condition: good Front tire condition: New Rear tire condition: New Battery voltage: 80V Description: For sale is a Linde E35L-01 electric 4-wheel forklift with extension forks and a container-compatible overall height. The forklift is ready for use and fully functional. The visual and technical condition are good. Vehicle data: Year of manufacture: 2018 Operating hours: 4 h Load capacity: 3,500 kg Mast type: Duplex Lifting height: 3,460 mm Overall height: 2,450 mm Free lift: 1,500 mm Extension forks: 1,200–2,000 mm Battery voltage: 80 V Front and rear tires: new Chassis number: H2X387J00413 Internal number: R0793 The unit is immediately available. A charger can be ordered upon request. Fast and uncomplicated transport is possible by arrangement. Errors and prior sales excepted. Sale is made excluding any warranty or guarantee. Side shift, fork positioner, Extension forks 1200-2000 mm 3rd valve, 4th valve

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 3,854 h, load capacity: 1,600 kg, lifting height: 4,770 mm, fuel type: diesel, mast type: triplex, drive type: Diesel, Diesel forklift Mast type: Triplex Hsdpfx Ahozkcxbozonp Condition: Ready for operation and fully functional Technical condition: Good Description: The vehicle will undergo a UVV inspection. Prior to delivery, the machine will receive a service. Sideshift, 3rd valve, heater, full cabin.

Condition: used, functionality: fully functional, machine/vehicle number: H2X386A05683, Year of construction: 2010, operating hours: 10,623 h, load capacity: 1,600 kg, lifting height: 4,920 mm, fuel type: electric, mast type: triplex, construction height: 1,940 mm, drive type: Elektro, Electric three-wheel forklift Chassis number: H2X386A05683 Load center: 500 Mast type: Triplex Condition: Ready for use and fully functional Technical condition: good Front tire type: Superelastic Rear tire type: Superelastic Battery voltage: 48V Hodpfezkc Iijx Ahzjnp Side shifter, fork positioner, 3rd valve, 4th valve, windshield, interior mirror, windshield wiper, three-wheel design

Condition: used, functionality: fully functional, Year of construction: 2010, operating hours: 16,826 h, load capacity: 3,000 kg, lifting height: 3,060 mm, free lift: 1,430 mm, fuel type: diesel, mast type: duplex, construction height: 2,180 mm, fork carriage width: 1,150 mm, fork length: 1,150 mm, empty load weight: 4,400 kg, total length: 2,750 mm, drive type: Diesel, construction width: 1,340 mm, Diesel forklift Load center: 500 Fork width: 125 mm Fork thickness: 45 mm Mast type: Duplex Condition: Ready for use and fully functional Technical condition: normal Front tire type: Superelastic Front tire size: 27x10-12 Rear tire type: Superelastic Rear tire size: 23x9-10 Hnjdezkm Tpopfx Ahzsp Description: In addition to this Linde model, we have approximately 200 heavy-duty forklifts, compact forklifts, reach trucks, and side loaders in our warehouses in Hamburg and Gdansk. Visit our website - sago-online. Lease purchase and financing at favorable terms are possible for us at any time. We will also gladly buy your used forklift outright, even if you do not purchase a vehicle from us. Our owner, Mr. Peter Sawitzki, will be happy to provide you with detailed advice on this H30D-01. P.S.: Our forklift workshop specializes in repair, refurbishment, overhaul, and custom construction for forklifts from 8 tons upwards. We will also gladly offer consignment sales for your vehicle. Heater, soot filter, full cabin, full free lift.

Condition: used, functionality: fully functional, Year of construction: 2017, operating hours: 3,817 h, load capacity: 2,500 kg, lifting height: 4,565 mm, free lift: 1,500 mm, fuel type: electric, mast type: duplex, construction height: 2,980 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 600 ISO class: ISO class 2 = 1,000 - 2,500 kg Hsdjvla E Sepfx Ahzenp Mast type: Duplex Condition: As good as new Technical condition: Very good Front tires Type: Superelastic Front tires Condition: 80 - 100% Rear tires Type: Superelastic Rear tires Condition: 80 - 100% Battery Volt: 80V Battery Ah: 620Ah Battery year of construction: 2017 Sideshift, Double pallet fork, 3rd valve, 4th valve, Rear working lights, Front working lights, Half cab, Full free lift,

Condition: used, functionality: fully functional, machine/vehicle number: H2X394C01350, Year of construction: 2012, operating hours: 11,239 h, load capacity: 4,500 kg, lifting height: 4,670 mm, fuel type: diesel, mast type: triplex, construction height: 2,380 mm, drive type: Diesel, Diesel forklift Chassis number: H2X394C01350 Mast type: Triplex Condition: Ready for operation and fully functional Technical condition: good Hedozkckqjpfx Ahzonp Description: For sale is a Linde H45 D-01 diesel forklift with a full cab and a design that allows it to handle containers. The forklift is ready for operation and fully functional. Both the visual and technical condition are good. Vehicle data: Year of manufacture: 2012 Operating hours: 11,239 h Load capacity: 4,500 kg Mast type: Triplex Lifting height: 4,670 mm Overall height: 2,380 mm Equipment: Full cab and suitable for handling containers Chassis number: H2X394C01350 Internal number: R0789 The unit is available immediately. Fast and uncomplicated transport is possible upon request. Subject to errors and prior sale. Sale is made excluding any warranty or guarantee. Fork positioner, 3rd valve, 4th valve, heater, STVZO (German Road Traffic Licensing Regulations), full cab.

Condition: excellent (used), functionality: fully functional, machine/vehicle number: 26007/1, Year of construction: 2017, operating hours: 12,920 h, load capacity: 8,000 kg, lifting height: 5,600 mm, load center: 600 mm, fuel type: diesel, mast type: triplex, construction height: 3,010 mm, motor manufacturer: DEUTZ, gearing type: hydrostat, front tire type: cushion tires (black), rear tire type: cushion tires (black), empty load weight: 13,090 kg, Equipment: UVV, air conditioning, cabin, clamp, lighting, seat heater, sideshift, Triplex mast with full free lift, overall height: 3010 mm, lift height: 5600 mm, load capacity: 8000 kg at load center 600 mm, fork positioner with new side shifter, new fork tines length: 2000 mm, road lighting according to StVO, LED work lights front and rear, full cabin with heating, air conditioning, front and rear camera, DEUTZ engine, double pedal foot control, 6x new SE tires, operating manual included. Technical condition at the time of sale: Forklift is fully overhauled! Major maintenance just carried out! New UVV safety inspection completed without defects! Delivery: In perfect condition! 20 years of professional experience! Hsdpfxsy Spmqs Ahzenp INSPECTION AND TEST DRIVE: By appointment at any time during opening hours: Monday to Friday, 8:00 am - 6:00 pm. Saturday from 8:00 am - 1:00 pm. TRANSPORT: Low-loader or curtain side truck available at a reasonable price.

Condition: excellent (used), functionality: fully functional, Year of construction: 2017, operating hours: 12,004 h, load capacity: 8,000 kg, lifting height: 5,600 mm, load center: 600 mm, fuel type: diesel, mast type: triplex, construction height: 3,010 mm, motor manufacturer: DEUTZ, gearing type: hydrostat, fork length: 2,000 mm, front tire type: cushion tires (black), rear tire type: cushion tires (black), Equipment: UVV, air conditioning, cabin, clamp, lighting, seat heater, sideshift, Triplex mast with full free lift, overall height: 3010 mm, lifting height: 5600 mm, load capacity: 8000 kg at load center: 600 mm, new fork positioner with side shifter, new fork length: 2000 mm, road lighting according to STVO (German Road Traffic Regulations), LED work lights front and rear, full cabin with heating, air conditioning, camera front and rear, DEUTZ engine, foot control with dual pedals, 6 x SE tires, operating manual included. Technical condition at the time of sale: Forklift has been technically overhauled! Major service recently performed! UVV (Occupational Safety and Health) inspection passed without any deficiencies! Delivery: In perfect condition! 20 years of professional experience! Hnedpszbvf Dofx Ahzsp INSPECTION AND TEST DRIVE: Available at any time during opening hours by appointment: Monday to Friday. From 8:00 AM to 6:00 PM. Saturday from 8:00 AM to 1:00 PM. TRANSPORT: Low-loader or flatbed truck available at a reasonable price.

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 1,149 h, load capacity: 4,000 kg, lifting height: 4,225 mm, free lift: 1,350 mm, fuel type: electric, mast type: triplex, construction height: 2,220 mm, fork carriage width: 1,350 mm, fork length: 1,500 mm, empty load weight: 7,678 kg, total length: 2,867 mm, drive type: Elektro, construction width: 1,440 mm, Electric four-wheel forklift Hnodpszmbpdsfx Ahzjp Load center: 600 Fork width: 130 mm Fork thickness: 60 mm ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Triplex Technical condition: very good Front tire type: Solid rubber Front tire size: 355/45-15 Front tire condition: 80 - 100% Rear tire type: Solid rubber Rear tire size: 225/75-10 Rear tire condition: 80 - 100% Battery voltage: 80V Battery capacity: 840Ah Battery manufacturer: CEIL Battery Systems Battery type: PzS 3. valve, load backrest, full free lift, safety light, Container version, additional hydraulics with 3 valves

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 6,650 h, load capacity: 3,500 kg, lifting height: 3,695 mm, free lift: 150 mm, fuel type: diesel, mast type: simplex, drive type: Diesel, Diesel forklift Load center: 500 ISO class: ISO Class 3 = 2,500 - 4,999 kg Hsdpfxsy Dkcdj Ahzsnp Mast type: Standard Condition: Ready for use and fully functional Technical condition: good Front tire type: Superelastic Front tire condition: 60 - 80% Rear tire type: Superelastic Rear tire condition: 40 - 60% Fork extension, side shifter, fork positioning device, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, air conditioning, full free lift, seat.

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 3,600 h, load capacity: 1,600 kg, lifting height: 4,250 mm, free lift: 150 mm, fuel type: gas, mast type: simplex, construction height: 2,700 mm, drive type: Treibgas, Internal combustion forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Standard Condition: Ready for operation and fully functional Technical condition: very good Front tire type: Superelastic Front tire condition: 20 - 40% Hnodpfx Ahezi Hu Rozsp Rear tire type: Superelastic Rear tire condition: 20 - 40% Description: The vehicle will be inspected according to UVV regulations. Before delivery, the machine will undergo servicing and cleaning. On request, the machine can be repainted. Side shifter, 3rd valve, rear work light, front work light, heater, full cabin.

Condition: excellent (used), functionality: fully functional, machine/vehicle number: 26018/2, Year of construction: 2012, operating hours: 23,177 h, load capacity: 5,000 kg, lifting height: 4,450 mm, load center: 500 mm, fuel type: gas, mast type: mono, construction height: 2,850 mm, power: 55 kW (74.78 HP), motor manufacturer: VW, gearing type: hydrostat, fork length: 1,600 mm, front tire type: cushion tires (black), rear tire type: cushion tires (black), empty load weight: 7,400 kg, Equipment: UVV, cabin, clamp, lighting, sideshift, Telescopic clear-view mast, overall height: 2850 mm, lift height: 4450 mm, clamp attachment with side shifter, fork length: 1600 mm, road lighting in accordance with German road regulations (StVO), LED work lights front and rear, fully enclosed cab with heating (left door missing!), VW LPG engine, double pedal foot controls, 6x SE tires, twin tires at the front, operator's manual included. Technical condition at sale: Forklift has been technically overhauled! Major maintenance newly completed! UVV safety inspection passed without defects! Delivery: In perfect condition! 20 years of professional experience! INSPECTION AND TEST DRIVE: Viewings and test drives possible by appointment during business hours: Monday to Friday, 8:00 am to 6:00 pm. Saturday from 8:00 am to 1:00 pm. Hnodpfx Asy Ruhwjhzjp TRANSPORT: Low loader or curtain-sided truck available at competitive prices.

Condition: used, functionality: fully functional, machine/vehicle number: H21202X002.., Year of construction: 2020, operating hours: 714 h, load capacity: 2,500 kg, lifting height: 4,830 mm, free lift: 1,600 mm, fuel type: diesel, mast type: triplex, construction height: 2,220 mm, fork length: 1,200 mm, empty load weight: 4,860 kg, drive type: Diesel, Diesel forklift Chassis number: H21202X002.. Hedowtu Agjpfx Ahzonp Load center: 600 ISO class: ISO class 2 = 1,000 - 2,500 kg Mast type: Triplex Transmission: Hydrostatic Condition: Ready for use and fully functional Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Sideshift, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heating, full cab, full free lift,

Condition: used, functionality: fully functional, Year of construction: 2012, operating hours: 2,859 h, load capacity: 1,800 kg, lifting height: 4,620 mm, fuel type: diesel, mast type: triplex, drive type: Diesel, Diesel forklift Hnjdpfx Aozirdqjhzop Mast type: Triplex Condition: Ready for use and fully functional Technical condition: good 3rd valve, heating, full cab,

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 2,197 h, load capacity: 2,500 kg, lifting height: 4,625 mm, free lift: 1,519 mm, fuel type: electric, mast type: triplex, construction height: 2,121 mm, drive type: Elektro, Electric 4-wheel forklift Hsdpszigi Usfx Ahzonp Mast type: Triplex Condition: Ready for use and fully functional Technical condition: good Battery voltage: 80V Battery capacity: 625Ah Battery type: PzS Battery year of manufacture: 2020 3rd valve, 4th valve

Condition: excellent (used), operating hours: 7,494 h, lifting height: 5,000 mm, mast type: triplex, fork length: 1,200 mm, Empty weight: 5.345 kg Lifting capacity: 3.500 kg Maximum passing height: 2.300 mm CE mark: yes Hnedpfext Sdrjx Ahzop Technical condition: very good Visual appearance: very good

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 9,296 h, load capacity: 3,500 kg, lifting height: 4,680 mm, free lift: 1,500 mm, fuel type: diesel, mast type: triplex, construction height: 2,350 mm, drive type: Diesel, Diesel forklift Load center: 500 ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Triplex Condition: Ready for use and fully functional Technical condition: Normal Front tire type: Superelastic Front tire condition: 40 - 60% Rear tire type: Superelastic Rear tire condition: 40 - 60% Side shifter, fork positioner, Hodpfxjziq Hke Ahzjnp 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, joystick, rotating beacon, windshield wiper, LED, seat

Condition: used, functionality: fully functional, Year of construction: 2020, operating hours: 3,357 h, load capacity: 3,000 kg, lifting height: 7,480 mm, free lift: 2,170 mm, fuel type: electric, mast type: triplex, construction height: 3,180 mm, fork carriage width: 1,150 mm, fork length: 1,200 mm, empty load weight: 6,379 kg, total length: 2,500 mm, drive type: Elektro, construction width: 1,225 mm, Electric 4-Wheel Forklift Load Center: 600 Fork Width: 120 mm Fork Thickness: 50 mm ISO Class: ISO Class 3 = 2,500 - 4,999 kg Mast Type: Triplex Condition: As New Hnjdpewgt Dvofx Ahzop Technical Condition: Very Good Front Tire Type: Non-Marking Front Tire Size: 23x10-12 Front Tire Condition: New Rear Tire Type: Non-Marking Rear Tire Size: 200/50-10 Rear Tire Condition: New Battery Voltage: 80V Battery Ah: 775Ah Battery Manufacturer: Stuba Battery Type: PzS Battery Year of Manufacture: 2020 Battery Condition: 60 - 80% Description: Half Cab, front and rear work lights, 3rd and 4th valves to fork carriage, 2x joysticks Two-pedal, integrated loader Sideshift, fork positioner, Tine adjustment with sideshift, opening range: internal clearance - internal clearance 165 - 775 mm 3rd valve, 4th valve, rear work lights, front work lights, half cab, full free lift, non-marking tires, interior mirror, joystick, windshield wipers, heated seat, LED, seat,

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 361 h, load capacity: 2,300 kg, lifting height: 5,330 mm, free lift: 1,285 mm, fuel type: electric, mast type: triplex, construction height: 2,440 mm, fork carriage width: 1,175 mm, fork length: 1,200 mm, empty load weight: 5,114 kg, drive type: Elektro, construction width: 1,170 mm, Electric 4-wheel forklift Load center: 500 Fork width: 100 mm Fork thickness: 45 mm ISO class: ISO class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: As good as new Technical condition: Very good Front tires Type: Non Marking Front tires Size: 225/75-10 Front tires Condition: 80 - 100% Rear tires Type: Non Marking Rear tires Size: 200/50-10 Rear tires Condition: 80 - 100% Battery Volt: 80V Battery Ah: 500Ah Hjdst Ddvbspfx Ahzenp Battery manufacturer: Hoppecke Battery type: PzS Battery year of construction: 2013 Battery condition: 20 - 40% Description: Half cab (Roadster), working lights front, BlueSpot rear, rotating beacon, 3rd + 4th valve to fork carriage, 2x cross lever, dual pedal, scales, integrated charger, code lock load protection grille, sideshift, integrated sideshift 3rd valve, 4th valve, front work lights, roof cover, half-cab, load guard, scales, safety light, non-creeping tires, interior mirror, joystick, rotating beacon, windscreen wiper, seat heating, LED, seat, BR 387 ROADSTER

Condition: used, Year of construction: 2015, operating hours: 2,354 h, load capacity: 3,000 kg, lifting height: 3,190 mm, mast type: simplex, construction height: 2,205 mm, fork carriage width: 1,145 mm, fork length: 1,200 mm, empty load weight: 5,035 kg, drive type: Elektro, construction width: 1,145 mm, Electric 4-wheel forklift Load center: 500 Fork width: 120 mm Fork thickness: 50 mm ISO class: ISO class 3 = 2,500 - 4,999 kg Mast type: Standard Condition: Ready for use and fully functional Technical condition: Very good Front tires Type: Non marking Front tires Size: 225/75-10 Front tires Condition: 40 - 60% Rear tires Type: Non Marking Rear tires Size: 200/50-10 Rear tires Condition: 60 - 80% Battery Volt: 80V Battery Ah: 500Ah Battery Manufacturer: SBS Battery type: PzS Battery year of construction: 2015 Hnedpfet Ddu Dex Ahzjp Battery condition: 40 - 60% Description: Full cab with heating, work lights front + rear, 3rd + 4th valve to fork carriage, rotating beacon, 2x cross lever, dual pedal, sun visors Sideshift, 3rd valve, 4th valve, rear working lights, front working lights, heating, full cab, non-creeping tires, interior mirror, joystick, rotating beacon, windshield wiper, seat heating, LED, seat,

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 853 h, load capacity: 2,000 kg, lifting height: 5,470 mm, free lift: 1,950 mm, fuel type: diesel, mast type: triplex, construction height: 2,465 mm, fork carriage width: 980 mm, fork length: 1,200 mm, empty load weight: 3,615 kg, drive type: Diesel, construction width: 1,150 mm, Diesel forklift Load center: 500 Fork width: 100 mm Fork thickness: 45 mm ISO class: ISO class 2 = 1,000 - 2,500 kg Mast type: Triplex Hsdpst Dd Rfefx Ahzenp Transmission: Hydrostat Condition: Reconditioned with warranty Technical condition: Very good Front tires type: Superelastic Front tires size: 200/50-10 Front tires Condition: 80 - 100% Rear tires Type: Superelastic Rear tires Size: 180/70-8 Rear tires Condition: 80 - 100% Description: Half cab with heating, working lights front + rear, BlueSpot, rotating beacon, 3rd + 4th valve to fork carriage, 2x cross lever, dual pedal, code lock load guard, integrated sideshift 3rd valve, 4th valve, rear working lights, front working lights, semi-cab, heating, load guard, full free lift, safety light, interior mirror, exterior mirror, joystick, rotating beacon, windshield wiper, LED, seat,

Condition: used, functionality: fully functional, Year of construction: 2016, operating hours: 10,154 h, load capacity: 1,400 kg, lifting height: 3,140 mm, free lift: 1,615 mm, fuel type: diesel, mast type: duplex, construction height: 2,265 mm, fork carriage width: 985 mm, fork length: 1,200 mm, empty load weight: 2,710 kg, drive type: Diesel, construction width: 1,090 mm, Diesel forklift Load center: 500 Fork width: 80 mm Fork thickness: 40 mm ISO class: ISO class 2 = 1,000 - 2,500 kg Mast type: Duplex Condition: Reconditioned with warranty Technical condition: Very good Front tires type: Superelastic Front tires Size: 180/70-8 Front tires Condition: 80 - 100% Rear tires Type: Superelastic Rear tires Size: 180/70-8 Rear tires Condition: 80 - 100% Description: Full cab with heating, working lights front + rear, rotating beacon, 3rd valve to fork carriage, 2x cross lever, single pedal integrated sideshift Hedpot Dd Rrefx Ahzonp 3rd valve, rear working lights, front working lights, heating, full cab, full free lift, interior mirror, exterior mirror, joystick, rotating beacon, windshield wiper, single pedal, seat,

Condition: used, functionality: fully functional, Year of construction: 2017, operating hours: 3,085 h, load capacity: 2,000 kg, lifting height: 4,620 mm, free lift: 1,585 mm, fuel type: diesel, mast type: triplex, construction height: 2,120 mm, fork carriage width: 985 mm, fork length: 1,200 mm, empty load weight: 3,360 kg, drive type: Diesel, construction width: 1,150 mm, Diesel forklift Load center: 500 Hnjdpet Dd Rxefx Ahzop Fork width: 100 mm Fork thickness: 45 mm ISO class: ISO class 2 = 1,000 - 2,500 kg Mast type: Triplex Transmission: Hydrostat Condition: Reconditioned with warranty Technical condition: Very good Front tires type: Superelastic Front tires size: 200/50-10 Front tires Condition: 80 - 100% Rear tires Type: Superelastic Rear tires Size: 180/70-8 Rear tires Condition: 80 - 100% Description: Full cab with heating, lighting STVO, working lights front + rear, rotating beacon, 3rd + 4th valve to fork carriage, 4x single lever, dual pedal Sideshift, 3rd valve, 4th valve, rear working lights, front working lights, heating, full cab, full free lift, interior mirror, exterior mirror, joystick, rotating beacon, windshield wiper, LED, seat,

Condition: used, functionality: fully functional, Year of construction: 2022, operating hours: 1,308 h, load capacity: 2,500 kg, lifting height: 5,560 mm, free lift: 1,794 mm, fuel type: diesel, mast type: triplex, construction height: 2,484 mm, drive type: Diesel, Diesel forklift Mast type: Triplex Condition: Ready for use and fully functional Technical condition: Very good Hodpfey Rvvpex Ahzsnp Sideshift, 3rd valve, 4th valve, heating, full cab,

Condition: used, functionality: fully functional, Year of construction: 2021, operating hours: 14,961 h, load capacity: 1,600 kg, lifting height: 3,150 mm, fuel type: diesel, mast type: simplex, drive type: Diesel, Diesel forklift Hsdpfxezhyrae Ahzjnp Mast type: Standard Condition: Ready for use and fully functional Technical condition: good Rotating device, 3rd valve, 4th valve, rear work light, front work light, roof protection, windshield, heater