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Fireboxes
600HT - 610 HT - 650HT - 655HT
installation, use and
maintenance instructions
Riverside, Goods Road, Belper, Derbyshire. DE56 1 UU
Tel. 01773 820940 • Fax 01773 820477
e-mail: info@robeys.co.uk • web site: www.robeys.co.uk

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Do you have a question about the 600HT and is the answer not in the manual?

Questions and answers

Fabrizio
February 26, 2025

Is there a way to adjust the draft of the incoming air as well as the exhaust air?

1 comments:
Mr. Anderson
February 26, 2025

The draft of the incoming air and exhaust air on a Piazzetta 600HT can be adjusted by ensuring proper air supply and venting as follows:

1. Permanent Air Vent: The stove requires a permanent and adequate air supply for safe operation. The air vent installed in the room must not be shut off or sealed.

2. Combustion Airflow Control: The recommended minimum section for fresh air intake is 200 cm², and the combustion airflow rate with an open intake is 93 m³/h.

3. Flue and Draught Requirements: The minimum draught required is 12 Pa, and the flue diameter should be 20 cm (or 25 cm for certain models). These values ensure proper exhaust air flow.

4. Multifuoco System® Adjustments: If using the Multifuoco System®, rear knockouts must remain covered unless specifically opened for natural convection.

5. Hood Grilles and Air Ducts: The hood grilles and convective air inlets/outlets must be maintained at the recommended minimum section (350 cm² each) to ensure proper airflow.

By maintaining these settings and ensuring proper installation, the draft of incoming air and exhaust air can be effectively managed.

This answer is automatically generated

Eoin JD Fraser
January 21, 2025

Is there access to the flue, through the appliance for sweeping?

1 comments:
Mr. Anderson
February 10, 2025

Yes, the Piazzetta 600HT provides access to the flue for sweeping, either through the stove itself or via an alternative means such as a soot door, which the installer may have provided.

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Summary of Contents for Piazzetta 600HT

  • Page 1 Fireboxes 600HT - 610 HT - 650HT - 655HT installation, use and maintenance instructions Riverside, Goods Road, Belper, Derbyshire. DE56 1 UU Tel. 01773 820940 • Fax 01773 820477 e-mail: info@robeys.co.uk • web site: www.robeys.co.uk...
  • Page 2 SUPPLEMENTARY INSTALLATION INSTRUCTIONS FOR THE UK MARKET TO BE READ IN CONJUNCTION WITH THOSE IN THE INSTRUCTION BOOKLET READ THE INSTRUCTION BOOKLET AND THESE SUPPLEMENTARY INSTRUCTIONS CAREFULLY BEFORE INSTALLATION These instructions together with those in the instruction booklet cover the basic principles to ensure the satisfactory installation of the stove, although detail may need slight modification to suit particular local site conditions.
  • Page 3 PREPARATORY WORK AND SAFETY CHECKS IMPORTANT WARNING This stove must not be installed into a chimney that serves any other heating appliance. There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit fumes into the room.
  • Page 4: Combustion Air Supply

    Hearth The hearth should be able to accommodate the weight of the stove and its chimney if the chimney is not independently supported. The weight of the stove is indicated in the brochure. The stove should always be installed on a non-combustible hearth of a size and construction that is in accordance with the provisions of the current Building Regulations Approved Document J.
  • Page 5: Important Notes

    SUPPLEMENTARY USER OPERATING INSTRUCTIONS TO BE READ IN CONJUNCTION WITH THOSE IN THE INSTRUCTION BOOKLET READ THE INSTRUCTION BOOKLET AND THESE INSTRUCTIONS CAREFULLY BEFORE USING THE STOVE WARNING NOTE Properly installed, operated and maintained this stove will not emit fumes into the dwelling. Occasional fumes from de-ashing and re-fuelling may occur.
  • Page 6: Chimney Fires

    Extractor fan There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit smoke and fumes into the room. Aerosol sprays Do not use an aerosol spray on or near the stove when it is alight. Use of operating tools Always use the operating tools provided when handling parts likely to be hot when the stove is in use.
  • Page 7: Cleaning And Maintenance

    Flueway cleaning It is important that the baffle plate and all the stove flueways are kept clean. When burning smokeless fuels they should be cleaned at least monthly. When burning other fuels they should be cleaned at least once a week, and more frequently if necessary. Remove any sooty deposits from the baffle plate.
  • Page 8: Important Information

    In line with its policy of constant product improvement and renewal, the manufacturer may make changes without notice. This document is the property of Gruppo Piazzetta S.p.A.; no part of it may be disclosed to third parties without the written permission of Gruppo Piazzetta S.p.A.
  • Page 9: Table Of Contents

    DT2010187-01 INDEX SECTION TITLE ................PAGE GENERAL RULES .
  • Page 10: General Rules

    DT2012089-00 1.0 GENERAL RULES Before proceeding with installation, choose the most suitable position for your firebox according to the indications given in the paragraph “MINIMUM SAFETY DISTANCES” and to all the indications below. Fig. 1 CHIMNEY POT FLUEWAY CONNECTION TO FLUE HOOD GRILL LINING WALL INSPECTION...
  • Page 11: Single Flueway Or Chimney

    DT2030258-00 If the flue pipe is an incorrect size or installed other than in compliance with the above instructions, Gruppo Piazzetta Fig. 3 Fig. 4 S.p.A. cannot be held liable for malfunctioning of the product, damage to property or injury to persons or animals.
  • Page 12: Chimney Stack

    DT2012091-00 CHIMNEY STACK Fig. 7 Fig. 8 The flue must be fitted at the top with a flue terminal designed to aid dispersion of the products of combustion in the atmosphere. The flue terminal must comply with the following requirements: - it must have an internal section and shape the same as the flue;...
  • Page 13: Permanent Ventilation

    DT2012090-00 PERMANENT VENTILATION Fig. 11 To ensure trouble-free operation the stove/firebox must have the necessary air available for combustion and this is provided through the permanent air vent. The permanent air vent must: Canopy grille - have a total free cross section at least equal to the size given in the paragraph “TECHNICAL DATA”;...
  • Page 14: Installation Environment

    DT2010033-01 INSTALLATION ENVIRONMENT The appliance should be installed in a location which allows safe and convenient use as well as easy maintenance. If the product being installed requires an electrical socket, the room must also be provided with an earthed power supply in accordance with current regulations. The room where the appliance is to be installed must comply with the following requirements: they must not be used as a garage, store for combustible material or for activities with a risk of fire.
  • Page 15: Method Of Heat Diffusion

    METHOD OF HEAT DIFFUSION Fig. 14 Diffusion with the Multifuoco System ® CEILING An original Piazzetta system designed to distribute heat evenly throughout the environment, even for several rooms on different floors. The Multifuoco System ® is very simple to install. It is necessary to install the ventilation kit, following the instructions given with the same, before positioning the stove and installing the surround.
  • Page 16: Suitable Heat Insulating Materials

    Fig. 16 Use the rear collars on the stove for warm air ductwork and leave the front ones for normal outflow by natural convection towards the hood grille. If all the collars are to be used for air ductwork, a hood grille must be installed in any case for the normal outflow of stratified warm air.
  • Page 17: Minimum Safety Distances

    DT2011906-00 1.10 MINIMUM SAFETY DISTANCES Walls Fig. 19 - FLAMMABLE WALLS: the stove may be installed near flammable walls provided suitable protection consisting of insulating and non- combustible material is inserted. Flammable To insulate the stove and to install the surround correctly, construct wall a lining wall in non-flammable material (e.g.
  • Page 18: Connection To The Flueway

    Furthermore, the surround must be made with non-flammable materials in compliance with regulations. For Gruppo Piazzetta S.p.A. surrounds, follow the instructions enclosed with the product. Testing and lighting for first time Only a visual inspection can be made in the intermediate stage for fireboxes, stoves and appliances that must be assembled or clad with brickwork or require the use of cement binders.
  • Page 19: Hook Grille

    DT2010177-00 1.13 HOOD GRILLE Fig. 23 The hood grille has the function of allowing air to pass from inside the hood to the environment or vice versa if the Multifuoco system is installed. CEILING IN FLAMMABLE MATERIAL Warm air comes out of the hood grille with the natural convection system and it is therefore necessary to maintain the safety distances from flammable materials such as: flammable ceilings or walls, ledges/beams, furniture, curtains, etc..
  • Page 20: Technical Data And Specifications

    Heat is diffused by: radiation, conduction, natural convection or forced convection with application of the Multifuoco System, which is an exclusive ventilation system for quickly and evenly distributing heat at floor level that has been created by the Piazzetta R&D Department.
  • Page 21: Accessories And Equipment

    DT2010183-00 ACCESSORIES AND EQUIPMENT Description Accessories Silicone paint spray can In kit Valve with smoke damper control In kit Hood grille 145x390 In kit Air intake grille 175x325 In kit Hexagonal door handle tool In kit Pipes and bends for connection to flueway Optional Accessories for hot air ductwork Optional...
  • Page 22: Technical Data

    DT2010327-02 TECHNICAL DATA U.M. 600 HT 610 HT 650 HT 655T HT 655E HT Rated heat output 12.5 Consumption at rated heat output kg/h 3.55 4.05 2.94 2.94 2.94 Thermal efficiency 72.5 72.5 72.5 CO content (with 13% O 0.18 0.17 0.18 0.18...
  • Page 23 Model 610 HT Ø DT1020260-01 Measurements in cm. Model 650 HT Ø 19,5 23,5 DT1020261-01 Measurements in cm. H07024510 / DT2000575 - Rev. 00...
  • Page 24 Model 655E HT Ø 19,5 23,5 11,5 54,5 DT1020262-01 Measurements in cm. Model 655T HT 19,5 23,5 11,5 Ø 54,5 R 41 DT1020263-01 Measurements in cm. H07024510 / DT2000575 - Rev. 00...
  • Page 25: Preparation For Installing

    DT2010326-00 3.0 PREPARATION FOR INSTALLING Fig. 27 - Carefully read all the information contained in the section “GENERAL RULES” before installing the firebox. - Unpack the firebox. - Release the counterweight by slackening the relative screw to be found inside the upper part of the door (Fig. 27 and 28). DT2030516-00 Fig.
  • Page 26: Installation Of The Smoke Damper

    DT2010328-00 4.0 INSTALLATION OF THE SMOKE DAMPER Fig. 31 The hearth is provided with a smoke damper with articulated rod which aligns with the angle of inclination to which the damper is being set. For installation purposes proceed as follows: - Position the damper [2] in its seat and keep it in a vertical position.
  • Page 27: Use

    DT2010329-00 5.0 USE Certain basic facts can be all-important for best performance and getting the most out of your appliance. Please find below some basic information intended to be of use with regard to the choice of firewood, the adjustment of the dampers and proper operation of the appliance. During operation, some parts of the appliance (door, handle, dampers, surround) can reach high temperatures.
  • Page 28: Smoke Damper Regulation

    Fig. 34 Log size The size of the wood logs can also affect the efficiency of the product. It is essential for the wood to be arranged on the grate on top of a layer of embers. The logs must not touch the aluker or the glass window nor must they be put on top of each other.
  • Page 29: Combustion Air Regulation

    DT2010333-00 COMBUSTION AIR REGULATION Fig. 36 The rated thermal efficiency is determined with the air damper. Pay attention to the positions given in the table below according to the fuels being used. The positions given below refer to rated efficiency. Since efficiency also depends on atmospheric and climatic conditions and therefore on the draught, the most suitable position will be found with experience.
  • Page 30: Lighting

    DT2010330-00 LIGHTING Fig. 37 Fig. 38 When lighting the fire, the grate should be brought quickly to working temperature. If it is done slowly, condensation will inevitably form and cause blackening of the grate and the glass Put the fuel into the grate according to the methods described below: - Put the air or smoke damper to the open position (MAXIMUM) (see paragraphs “COMBUSTION AIR REGULATION”...
  • Page 31: Operation Under Adverse Weather Conditions

    DT2010048-00 OPERATION UNDER ADVERSE WEATHER CONDITIONS During the intermediate seasons with adverse weather conditions or when outdoor temperatures are higher, a sudden rise can cause malfunctioning of the draught, thereby impeding proper smoke discharge. In this case the grate must be loaded with only a little wood and the primary air damper be set fully open so that the wood burns faster and thereby stabilises the draught.
  • Page 32: Maintenance

    DT2010111-02 6.0 MAINTENANCE All maintenance work (cleaning, any replacements, etc.) must be carried out when the firebox is shutdown and cold. Do not use materials that could scratch or damage the glass, since scratches could become cracks. Under no circumstances use abrasive substances.
  • Page 33: Cleaning The Glass (Daily)

    750°C. This can only be broken by heavy impact, such as banging the door too hard. In the event of breakage replace with original Gruppo Piazzetta S.p.A. parts only. Do not operate the appliance if the glass is broked or cracked.
  • Page 34: Removing The Smoke Baffle Plates

    All cleaning and maintenance operations must be carried out after DISCONNECTION OF THE POWER. Pursuant to current regulations on the safety of electrical equipment, you must contact a Piazzetta After-Sales Service Centre or a qualified electrician for all and any work connected with installation, maintenance or servicing that involves access to electrical parts.
  • Page 35: Troubleshooting

    DT2010069-01 7.0 TROUBLESHOOTING Some of the above problems could be resolved by following the instructions. Only qualified persons must carry out work on the stove and only when it is cold and disconnected from the power supply (pull out the plug). Unauthorised tampering with the appliance or use of other than original spare parts invalidates the warranty and relieves the manufacturer of all and any liability.
  • Page 36 (*) Pursuant to current regulations on the safety of electrical equipment, you must contact a Piazzetta After-Sales Service Centre or a qualified electrician for all and any work connected with installation, maintenance or servicing that involves access to electrical parts.
  • Page 40 Product serial number, to be quoted when requesting service from the Gruppo Piazzetta After-Sales Service Centre. Via Montello, 22 31011 Casella d’Asolo (TV) - ITALY Tel. +39.04235271 - Fax +39.042355178 www.piazzetta.it e-mail: infopiazzetta@piazzetta.it...

This manual is also suitable for:

610 ht655ht650ht

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